Substance Information

Substance Infocard

IC

selenium compounds with the exception of cadmium sulphoselenide and those specified elsewhere in this Annex

Help Substance identity

The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas.

Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed.

EC (European Community) Number

The EC Number is the numerical identifier for substances in the EC Inventory. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). More information about the EC Inventory can be found here.

If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9.

The EC or list number is the primary substance identifier used by ECHA.

CAS (Chemical Abstract Service) registry number

The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. More information about CAS and the CAS registry can be found here.

Molecular formula

The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

Molecular structure

The molecular structure is based on structures generated from information available in ECHA’s databases. If generated, an InChI string will also be generated and made available for searching. This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

More help available here.

EC / List no.: -

CAS no.: -

Mol. formula:

formula
Help Hazard classification and labelling

The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH).

This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). The source of the information is mentioned in the introductory sentence of the hazard statements. When information is available in all sources, the first two are displayed as a priority.

Please note:

The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. in case of consumer and professional uses). Other relevant information includes the following:

  • Substances may have impurities and additives that lead to different classifications. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives.
  • Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the UN Global Harmonised System (GHS).

To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory.

More information about Classification and Labelling is available in the Regulations section of ECHA website.

More help available here.

Harmonised classification and labelling (CLH)

Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.

The ‘Hazard classification’ and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.

If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard.

It is possible that a harmonisation is introduced through an amendment to the CLP Regulation. In that case, the ATP (Adaptation to Technical Progress) number is displayed.

More info on CLH can be found here.

Classification and labelling under REACH

If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. This information has not been reviewed or verified by ECHA, and may change without prior notice. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP.

Notifications under the Classification Labelling and Packaging (CLP) Regulation

If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. These notifications can be provided by manufacturers, importers and downstream users. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information.

Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed.

GHS08: Serious Health Hazard GHS06: Acute Toxicity GHS09: Hazardous to the Environment

Danger! According to the harmonised classification and labelling (ATP01) approved by the European Union, this substance is toxic if swallowed, is toxic if inhaled, is very toxic to aquatic life, is very toxic to aquatic life with long lasting effects and may cause damage to organs through prolonged or repeated exposure.

about INFOCARD - Last updated: 18/03/2020 InfoCard

The InfoCard summarises the non-confidential data of a substance held in the databases of the European Chemicals Agency (ECHA). InfoCards are generated automatically based on the data available at the time of generation.

The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. the electronic edition of the Official Journal of the European Union.

InfoCards are updated when new information is available. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data.

More help available here.

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

CLP - Classification, Labelling and Packaging
  • A list of substances for which classification and labelling data have been notified to ECHA by manufacturers or importers.
CAD - Chemical Agents Directive
  • CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous Agents
    EU. Hazardous Substances - Art. 2(b)(i), Directive 98/24/EC on Protection of Workers from Chemical Agent-related Risks, 5 May 1998 (Table 3 of Annex VI to CLP, as amended)

    This list represents a calculated inventory of substances based on the list of harmonized substances contained in Table 3 of Annex VI to the CLP Regulation (1272/2008/EC). Note that this list is not exhaustive. While the harmonized list covers many hazardous substances, other ones not listed may also meet the classification criteria in accordance with the CLP.

EU Ecolabel Regulation
  • EU Ecolabels - Restrictions for Hazardous Substances/Mixtures
    EU. Substances Rendering Goods Ineligible for EU Ecolabel, Art. 6(6), Reg. 66/2010/EC, L 27/1, 30 Jan 2010 (T. 3 of Anx VI to CLP; Candidate List of SVHCs)

    This database contains: (1) the list of hazardous substances harmonized for classification and labeling in EU (i.e. Table 3 of Annex VI to CLP Regulation); and (2) the Candidate List of substances of very high concern (SVHC). The EU Ecolabel may not be awarded to substances or mixtures classified as such. Note that this list is not exhaustive. While the harmonized list covers many hazardous substances, other ones not listed may also meet the classification criteria in accordance with the CLP.

Protection of Young People Directive
  • Physical, Biological and Chemical Agents & Processes and Work
    EU. Non-Exhaustive List of Banned Substances, Directive 94/33/EC on Young People at Work, 20 August 1994, as amended by Dir 2014/27/EU, March 5, 2014 (Based on Table 3 of Annex VI to CLP, inter alia)

    This list contains biological and chemical agents, in accordance with Art. 7 and points 2 and 3 of the Annex to Directive 94/33/EC, to which young persons (under 18 years of age) may not be exposed at the workplace. The database represents a non-exhaustive list of such substances based on: 1) agents of risk groups 3 and 4 under Directive 2000/54/EC; 2) Table 3 of Annex VI to the CLP Regulation; 3) and Annex I of Directive 2004/37/EC.

Safety and/or Health Signs at Work Directive
  • Workplace Signs - minimum requirements & signs on containers and pipes
    EU. Workplace Signage: Annexes I and III, Directive 92/58/EEC, last amended by Directive 2014/27/EU, 5 March 2014

    This directive requires employers to ensure proper signage is posted in areas where hazards cannot be avoided or reduced. The annexes to this directive provide detailed information about the minimum requirements for all safety and health signs. According to the annexes to the directive, storage areas and containers containing chemical substances or mixtures that are classified as hazardous according to the CLP Regulation (1272/2008/EC) must be marked and/or labeled.

WFD - Waste Framework Directive
  • Waste Framework Directive, Annex III - Waste - Hazardous Properties
    EU. Substances according to Hazardous Waste Properties: Annex III, Directive 2008/98/EC, 22 November 2008, amended by Directive 2018/851/EU, 14 June 2018

    This database contains substances that have been assigned hazard property (HP) waste codes 1-15, as defined in terms of the hazard class & category, hazard (H) statement, and/or concentration limits provided in Annex III of the Waste Framework Directive (2008/98/EC). The classifications of the substances listed in the database are based on their harmonized classifications per Table 3 of Annex VI to the CLP Regulation (1272/2008/EC).

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Substance names and other identifiers

Regulatory process names
selenium compounds with the exception of cadmium sulphoselenide and those specified elsewhere in this Annex
C&L Inventory, Other, CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous Agents, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures, Workplace Signs - minimum requirements & signs on containers and pipes, Waste Framework Directive, Annex III - Waste - Hazardous Properties, Fertiliser Regulation- Annex I, E.3 (chelating and complexing agents)
Translated names
composti del selenio tranne il solfoseleniuro di cadmio e esclusi quelli espressamente indicati nel presente allegato (it)
C&L Inventory
compostos de selénio, com excepção do sulfosseleneto de cádmio e dos expressamente referidos no presente anexo (pt)
C&L Inventory
composés de sélénium, à l'exception du phosphosélénide et de ceux spécifiés ailleurs dans la présente annexe (fr)
C&L Inventory
compuestos de selenio, excepto el sulfoseleniuro de cadmio y los especificados en otras partes del presente anexo (es)
C&L Inventory
compuși de seleniu, cu exceptia sulfoseleniurei de cadmiu si a celor specificati în altă parte în prezenta anexă (ro)
C&L Inventory
komposti tas-selenju bl-eċċezzjoni tas-sulfoselenid tal-kadmju u dawk speċifikati x'imkien ieħor f'dan l-Anness (mt)
C&L Inventory
seleeniyhdisteet paitsi kadmiumsulfoselenidi muualla tässä liitteessä mainitut (fi)
C&L Inventory
seleeniühendid, välja arvatud kaadmiumsulfoseleniid ning mujal käesolevas lisas määratletud (et)
C&L Inventory
seleenverbindingen met uitzondering van cadmium sulfoselenide en met uitzondering van de elders in deze bijlage met name genoemde (nl)
C&L Inventory
selenforbindelser med undtagelse af cadmiumsulfoselenid (xCdS.yCdSe) undtagen sådanne nævnt andetsteds i dette bilag (da)
C&L Inventory
selenforbindelser, unntatt kadmiumsulfoselenid og de som er nevnt andre steder i listen (no)
C&L Inventory
selenföreningar utom kadmiumsulfoselenid och sådana som är upptagna på annat ställe i denna bilaga (sv)
C&L Inventory
seleno junginiai, išskyrus kadmio sulfoselenidą ir nurodytuosius kitose šio priedo vietose (lt)
C&L Inventory
selenove spojine, razen kadmijevega sulfoselenida in tistih, ki so navedene drugje v tej prilogi (sl)
C&L Inventory
selenovi spojevi osim kadmijeva sulfoselenida i onih koji su navedeni negdje drugdje u ovom Prilogu (hr)
C&L Inventory
Selenverbindungen mit Ausnahme von Cadmiumsulfoselenid, soweit in diesem Anhang nicht gesondert aufgeführt (de)
C&L Inventory
selēna savienojumi, izņemot kadmija sulfoselenīdu un tos, kas norādīti citur šajā pielikumā (lv)
C&L Inventory
sloučeniny selenu s výjimkou sulfo-selenidu (selenid - sulfidu}kademnatého, a těch, které jsou uvedeny jinde v této příloze (cs)
C&L Inventory
szelénvegyületek (kivéve a kadmium-szulfoszelenidet és az e mellékletben külön szereplő vegyületeket) (hu)
C&L Inventory
zlúčeniny selénu okrem sulfidu-selenidu kademnatého a tých, ktoré sú špecifikované inde v tejto prílohe (sk)
C&L Inventory
związki selenu, z wyjątkiem selenku siarczku kadmu oraz związków wymienionych w innym miejscu niniejszego załącznika (pl)
C&L Inventory
ενώσεις σεληνίου, εκτός από το θειοσεληνιούχο κάδμι, εκτός από εκείνες που κατονομάζονται σε άλλο σημείο του παρόντος παραρτήματος (el)
C&L Inventory
селенови съединения с изключение на кадмиев сулфоселенид и тези, посочени другаде в това Приложение (bg)
C&L Inventory
Other identifiers
034-002-00-8
C&L Inventory
Index Number
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Group members

This entry / group of substance has the following member substances:

Name EC / List no. CAS no. Association
N,N,6-triethyl-5-thioxo-2,4-dithia-3-selena-6-azaoctanethioamide 205-267-9 136-92-5 Expert judgement
Selenium tetrakis(dimethyldithiocarbamate) 205-624-9 144-34-3 Expert judgement
2,1,3-benzoselenadiazole 205-986-8 273-15-4 Expert judgement
Selenium chloride 233-037-8 10025-68-0 Expert judgement
Selenium tetrachloride 233-053-5 10026-03-6 Expert judgement
Cobalt(2+) selenite 233-064-5 10026-23-0 Expert judgement
Nickel(2+) selenite 233-263-7 10101-96-9 Expert judgement
Sodium selenite 233-267-9 10102-18-8 Expert judgement
Copper(2+) selenite 233-526-6 10214-40-1 Expert judgement
Dicesium selenate 233-712-7 10326-29-1 Expert judgement
Potassium selenite 233-909-8 10431-47-7 Expert judgement
Dicerium triselenide 234-604-2 12014-94-7 Expert judgement
Didysprosium triselenide 234-652-4 12020-04-1 Expert judgement
Dierbium triselenide 234-657-1 12020-38-1 Expert judgement
Europium selenide 234-662-9 12020-66-5 Expert judgement
Gallium selenide 234-689-6 12024-11-2 Expert judgement
Digallium triselenide 234-693-8 12024-24-7 Expert judgement
Gadolinium selenide 234-700-4 12024-90-7 Expert judgement
Holmium selenide 234-739-7 12029-87-7 Expert judgement
Dilanthanum triselenide 234-753-3 12031-51-5 Expert judgement
Niobium diselenide 234-811-8 12034-77-4 Expert judgement
Dineodymium triselenide 234-821-2 12035-33-5 Expert judgement
Diyttrium triselenide 234-855-8 12036-87-2 Expert judgement
Praseodymium selenide 234-872-0 12038-08-3 Expert judgement
Rhenium diselenide 234-879-9 12038-64-1 Expert judgement
Terbium selenide 234-894-0 12039-51-9 Expert judgement
Thallium selenide 234-895-6 12039-52-0 Expert judgement
Thulium selenide 234-896-1 12039-53-1 Expert judgement
Ytterbium selenide 234-897-7 12039-54-2 Expert judgement
Tantalum diselenide 234-898-2 12039-55-3 Expert judgement
Chromium selenide 234-999-1 12053-13-3 Expert judgement
Diindium triselenide 235-016-9 12056-07-4 Expert judgement
Molybdenum diselenide 235-027-9 12058-18-3 Expert judgement
Germanium selenide 235-061-4 12065-10-0 Expert judgement
Germanium diselenide 235-063-5 12065-11-1 Expert judgement
Titanium diselenide 235-077-1 12067-45-7 Expert judgement
Tungsten diselenide 235-078-7 12067-46-8 Expert judgement
Dibismuth triselenide 235-104-7 12068-69-8 Expert judgement
Lead selenide 235-109-4 12069-00-0 Expert judgement
Dilithium selenide 235-230-2 12136-60-6 Expert judgement
Uranium diselenide 235-245-4 12138-21-5 Expert judgement
Hafnium diselenide 235-300-2 12162-21-9 Expert judgement
Diholmium triselenide 235-303-9 12162-60-6 Expert judgement
Dilutetium triselenide 235-308-6 12163-21-2 Expert judgement
Discandium triselenide 235-323-8 12166-43-7 Expert judgement
Zirconium diselenide 235-325-9 12166-47-1 Expert judgement
Beryllium selenide 235-450-9 12232-25-6 Expert judgement
Vanadium diselenide 235-568-0 12299-51-3 Expert judgement
Manganese diselenide 235-569-6 12299-98-8 Expert judgement
Dirhenium heptaselenide 235-635-4 12397-16-9 Expert judgement
Selenium oxide 235-738-4 12640-89-0 Expert judgement
Sodium selenate 236-501-8 13410-01-0 Expert judgement
Selenium tetrafluoride 236-703-6 13465-66-2 Expert judgement
Zinc selenite 237-048-9 13597-46-1 Expert judgement
Zinc selenate 237-051-5 13597-54-1 Expert judgement
Barium selenite 237-280-0 13718-59-7 Expert judgement
Selenium trioxide 237-385-1 13768-86-0 Expert judgement
Calcium selenite 237-427-9 13780-18-2 Expert judgement
Cadmium selenite 237-480-8 13814-59-0 Expert judgement
Cadmium selenate 237-481-3 13814-62-5 Expert judgement
Calcium selenate 237-844-6 14019-91-1 Expert judgement
Cobalt(2+) selenate 238-634-7 14590-19-3 Expert judgement
Strontium selenite 238-635-2 14590-38-6 Expert judgement
Aluminium selenate 238-746-6 14696-77-6 Expert judgement
2-amino-4-(methylselenyl)butyric acid 215-977-0 1464-42-2 Expert judgement
Diphenyl diselenide 216-780-2 1666-13-3 Expert judgement
3-methylbenzothiazole-2(3H)-selone 220-506-7 2786-43-8 Expert judgement
2-methylbenzoselenazole 220-577-4 2818-88-4 Expert judgement
2,5-dimethylbenzoselenazole 220-579-5 2818-89-5 Expert judgement
5-methoxy-2-methylbenzoselenazole 220-956-4 2946-17-0 Expert judgement
2,5,6-trimethylbenzoselenazole 220-958-5 2946-20-5 Expert judgement
Potassium selenocyanate 222-320-1 3425-46-5 Expert judgement
Triphenylphosphine selenide 223-406-1 3878-44-2 Expert judgement
1,1-dimethyl-2-selenourea 225-854-3 5117-16-8 Expert judgement
1,1-diethyl-2-selenourea 225-855-9 5117-17-9 Expert judgement
1,7-dihydro-6H-purine-6-selone 226-088-2 5270-30-4 Expert judgement
Selenium tetrakis(diethyldithiocarbamate) 226-713-9 5456-28-0 Expert judgement
1,3-dimethyl-2-selenourea 226-883-4 5533-46-0 Expert judgement
Chloroselenobenzene 227-196-2 5707-04-0 Expert judgement
Didodecyl selenide 227-391-2 5819-01-2 Expert judgement
Seleninobenzoic acid 230-271-2 6996-92-5 Expert judgement
Dimethyl diselenide 230-410-7 7101-31-7 Expert judgement
3-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)isobut-1-enyl]benzoselenazolium iodide 230-767-9 7310-87-4 Expert judgement
Selenium dioxide 231-194-7 7446-08-4 Expert judgement
Lead selenate 231-199-4 7446-15-3 Expert judgement
Dirubidium selenate 231-200-8 7446-17-5 Expert judgement
Strontium selenate 231-202-9 7446-21-1 Expert judgement
Lead(2+) selenite 231-300-1 7488-51-9 Expert judgement
Selenium disulphide 231-303-8 7488-56-4 Expert judgement
Selenium 231-957-4 7782-49-2 Expert judgement
Sodium hydrogenselenite 231-966-3 7782-82-3 Expert judgement
Selenious acid 231-974-7 7783-00-8 Expert judgement
Dihydrogen selenide 231-978-9 7783-07-5 Expert judgement
Selenic acid 231-979-4 7783-08-6 Expert judgement
Ammonium selenite 231-983-6 7783-19-9 Expert judgement
Ammonium selenate 231-985-7 7783-21-3 Expert judgement
Disilver selenite 232-046-4 7784-05-6 Expert judgement
Barium selenate 232-113-8 7787-41-9 Expert judgement
Seleninyl bromide 232-171-4 7789-51-7 Expert judgement
Selenium bromide 232-173-5 7789-52-8 Expert judgement
Selenium tetrabromide 232-181-9 7789-65-3 Expert judgement
Potassium selenate 232-214-7 7790-59-2 Expert judgement
Seleninyl dichloride 232-244-0 7791-23-3 Expert judgement
3-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)-2-methylprop-1-enyl]benzoselenazolium bromide 246-408-4 24687-31-8 Expert judgement
Hydrogen-2-[2-[[5-methoxy-3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]but-1-enyl]-5,6-dimethyl-3-(3-sulphonatopropyl)benzothiazolium 246-411-0 24687-35-2 Expert judgement
Dirubidium selenide 250-447-2 31052-43-4 Expert judgement
Dicesium selenide 250-448-8 31052-46-7 Expert judgement
2-methyl-3-(3-sulphonatobutyl)benzoselenazolium 263-962-2 63149-25-7 Expert judgement
2-[2-[(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-6-methoxy-5-methyl-3-(4-sulphonatobutyl)benzothiazolium 264-472-1 63815-64-5 Expert judgement
1-benzyl-6-methoxy-2-[[3-(4-sulphonatobutyl)-3H-benzoselenazol-2-ylidene]methyl]quinolinium 264-475-8 63815-75-8 Expert judgement
2-methyl-3-(4-sulphonatobutyl)benzoselenazolium 264-476-3 63815-80-5 Expert judgement
1-benzyl-6-methoxy-2-[[3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]quinolinium 264-488-9 63816-07-9 Expert judgement
4-methoxy-2-nitrophenyl selenocyanate 264-492-0 63816-14-8 Expert judgement
2,2'-diselenobis[5-methoxyaniline] 264-493-6 63816-15-9 Expert judgement
3-ethyl-2-[2-[(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-6-methylbenzothiazolium iodide 264-494-1 63816-16-0 Expert judgement
1-ethyl-2-[(3-ethyl-3H-benzoselenazol-2-ylidene)methyl]-6-methylquinolinium iodide 264-536-9 63870-48-4 Expert judgement
5-chloro-3-ethyl-2-[2-[[5-methoxy-3-(4-sulphonatobutyl)benzoselenazol-2(3H)-ylidene]methyl]but-1-enyl]benzothiazolium 264-558-9 63907-45-9 Expert judgement
Ethyl 3-ethyl-2-methylbenzoselenazolium sulphate 266-181-5 66142-22-1 Expert judgement
2-[2-[[5,6-dimethoxy-3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]but-1-enyl]-3-ethyl-5-methoxybenzoxazolium 266-543-2 67014-91-9 Expert judgement
1-ethyl-2-[(3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl]-6-methoxyquinolinium bromide 267-113-7 67800-88-8 Expert judgement
2-[2-chloro-2-(2-thienyl)vinyl]-3-ethyl-5-methoxybenzoselenazolium chloride 270-258-9 68413-87-6 Expert judgement
2-[3-(3-ethyl-5-methoxybenzoselenazol-2(3H)-ylidene)-2-(thien-2-yl)prop-1-enyl]-3-(2-hydroxyethyl)-6-methoxy-5-methylbenzothiazolium bromide 270-563-7 68443-89-0 Expert judgement
(aminoiminomethyl)selenourea 271-154-6 68516-47-2 Expert judgement
3-ethyl-2-[2-[(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-5-methoxybenzoselenazolium iodide 271-426-4 68555-40-8 Expert judgement
3-(2-carboxyethyl)-2-[2-[[3-(2-carboxyethyl)-(3H)-benzoselenazol-2-ylidene]methyl]but-1-enyl]-5-methylbenzoselenazolium bromide 272-157-5 68758-81-6 Expert judgement
3-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)prop-1-enyl]benzoxazolium iodide 251-249-9 32835-25-9 Expert judgement
3-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)prop-1-enyl]benzothiazolium iodide 251-252-5 32835-32-8 Expert judgement
1,2-dihydro-5-methyl-3-selenoxo-3H-1,2,4-triazole 251-393-2 33144-86-4 Expert judgement
3-ethyl-2-[3-(3-ethylthiazolidin-2-ylidene)prop-1-enyl]benzoselenazolium iodide 251-594-5 33609-19-7 Expert judgement
1-ethyl-2-[[3-(4-sulphonatobutyl)-2-benzoselenazolinylidene]methyl]quinolinium 251-912-2 34276-89-6 Expert judgement
Bromoselenobenzene 252-238-1 34837-55-3 Expert judgement
Bis(2-nitrophenyl) diselenide 252-522-5 35350-43-7 Expert judgement
2-[2-[[5,6-dimethoxy-3-(3-sulphonatopropyl)-(3H)-benzoselenazol-2-ylidene]methyl]but-1-enyl]-3-ethyl-5,6-dimethylbenzoselenazolium 252-595-3 35498-95-4 Expert judgement
Bis(4-nitrophenyl) diselenide 252-956-5 36297-89-9 Expert judgement
2-[2-[(3-ethyl-5-methyl-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-5,6-dimethyl-3-(3-sulphonatopropyl)benzoselenazolium 254-733-8 39981-05-0 Expert judgement
3-ethyl-2-methylbenzoselenazolium 4-methylbenzenesulphonate 255-815-6 42423-89-2 Expert judgement
N,N'-(diselenodi-2,1-phenylene)bis(N-methylacetamide) 255-995-6 42905-02-2 Expert judgement
1-ethyl-2-[(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl]-6-methoxyquinolinium iodide 256-566-6 50378-83-1 Expert judgement
o-nitrophenyl selenocyanate 257-350-4 51694-22-5 Expert judgement
3-ethyl-2-[3-(3-ethyl-5,6-dimethyl-3H-benzoselenazol-2-ylidene)-2-methylprop-1-enyl]-5,6-dimethylbenzoselenazolium bromide 257-428-8 51799-69-0 Expert judgement
Hydrogen 2-[2-[[5,6-dimethyl-3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]but-1-enyl]-5,6-dimethyl-3-(3-sulphonatopropyl)benzoselenazolium, sodium salt 257-984-1 52513-84-5 Expert judgement
Hydrogen 2-[2-methyl-3-[3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]prop-1-enyl]-3-(3-sulphonatopropyl)benzoselenazolium 258-101-2 52685-95-7 Expert judgement
5-ethoxy-2-[2-[(3-ethyl-5-methyl-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-3-(3-sulphonatopropyl)benzothiazolium 259-833-5 55811-25-1 Expert judgement
Trimethyl[(phenylseleno)methyl]silane 260-077-3 56253-60-2 Expert judgement
Digallium diselenide 261-138-7 58127-88-1 Expert judgement
Thorium diselenide 262-410-8 60763-24-8 Expert judgement
Magnesium selenate 239-075-1 14986-91-5 Expert judgement
Nickel selenate 239-125-2 15060-62-5 Expert judgement
Copper selenate 239-181-8 15123-69-0 Expert judgement
Dirubidium selenite 239-187-0 15123-97-4 Expert judgement
Dithallium selenide 239-627-1 15572-25-5 Expert judgement
Dicesium selenite 239-647-0 15586-47-7 Expert judgement
Dilithium selenite 239-666-4 15593-51-8 Expert judgement
Dilithium selenate 239-668-5 15593-52-9 Expert judgement
Bis(2-aminobenzeneselenolato-N,Se)zinc 239-693-1 15615-72-2 Expert judgement
Manganese(2+) selenite 239-796-1 15702-34-8 Expert judgement
4-(allylseleno)-1-chlorobenzene 241-513-1 17508-29-1 Expert judgement
Bis(phenylseleninic) anhydride 241-701-3 17697-12-0 Expert judgement
1-ethyl-6-methoxy-2-[[5-methoxy-3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]quinolinium 241-805-9 17852-69-6 Expert judgement
Bis(dimethyldithiocarbamato-S,S')selenium 243-196-5 19632-73-6 Expert judgement
Dicopper selenide 243-796-7 20405-64-5 Expert judgement
Bis(p-chlorophenyl) diselenide 243-864-6 20541-49-5 Expert judgement
Mercury selenide 243-910-5 20601-83-6 Expert judgement
Dialuminium triselenite 244-126-6 20960-77-4 Expert judgement
Selenosemicarbazide 244-266-8 21198-79-8 Expert judgement
Bis(diethylthiocarbamato-S)bis(diethylthiocarbamato-S,S')selenium 244-442-4 21559-14-8 Expert judgement
Slimes and Sludges, copper conc. roasting off gas scrubbing, lead-mercury-selenium-contg.
The product obtained by the purification of copper ore concentrate roasting offgas. Composed primarily of lead, mercury and selenium.
310-062-3 102110-61-2 Expert judgement
Butanoic acid, 2-amino-4-(ethylseleno)-, (+-)- 607-809-3 2578-27-0 Expert judgement
Butanoic acid, 2-amino-4-(methylseleno)-, (S)- 608-705-0 3211-76-5 Expert judgement
Selenium fluoride 620-577-8 7783-79-1 Expert judgement
Dibenzyl diselenide 623-250-8 1482-82-2 Expert judgement
2-(4,5-dimethyl-2H-1,3-diselenol-2-ylidene)-4,5-dimethyl-2H-1,3-diselenole 623-491-9 55259-49-9 Expert judgement
2-(phenylselanyl)-2,3-dihydro-1H-isoindole-1,3-dione 627-542-6 71098-88-9 Expert judgement
Selenide, diethyl- 628-361-5 627-53-2 Expert judgement
Selenophene 628-767-2 288-05-1 Expert judgement
disodium decahydrate selenate 629-472-1 10102-23-5 Expert judgement
2-amino-3-[[](2-amino-2-carboxyethyl)diselanyl]propanoic acid 636-685-3 2897-21-4 Expert judgement
2-[[](2-aminoethyl)diselanyl]ethan-1-amine dihydrochloride 636-857-8 3542-13-0 Expert judgement
6-Selenoinosine 637-038-8 40093-99-0 Expert judgement
Sodium selenite pentahydrate 641-389-2 26970-82-1 Expert judgement
6-Selenoguanosine 684-216-6 29411-74-3 Expert judgement
Nickel selenide - 11115-99-4 Expert judgement
Cadmium selenide sulfide, (Cd2SeS) - 12213-70-6 Expert judgement
Carbon diselenide 208-054-9 506-80-9 Expert judgement
Dimethyl selenide 209-807-4 593-79-3 Expert judgement
Diethyl diselenide 211-042-6 628-39-7 Expert judgement
Selenourea 211-129-9 630-10-4 Expert judgement
Phenylselenol 211-457-2 645-96-5 Expert judgement
3-ethyl-2-[2-[(3-ethyl-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]benzoselenazolium iodide 213-002-3 909-64-8 Expert judgement
Triglycine selenate 213-053-1 920-25-2 Expert judgement
Ethyl 3-ethyl-2-[5-(3-ethyl-3H-benzoselenazol-2-ylidene)penta-1,3-dienyl]benzoselenazolium sulphate 213-583-3 988-93-2 Expert judgement
3-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)prop-1-enyl]benzoselenazolium iodide 213-882-9 1049-38-3 Expert judgement
Diphenyl selenide 214-474-3 1132-39-4 Expert judgement
Disilver selenide 215-099-8 1302-09-6 Expert judgement
Aluminium selenide 215-110-6 1302-82-5 Expert judgement
Diarsenic triselenide 215-119-5 1303-36-2 Expert judgement
Barium selenide 215-130-5 1304-39-8 Expert judgement
Calcium selenide 215-141-5 1305-84-6 Expert judgement
Cadmium selenide 215-148-3 1306-24-7 Expert judgement
Cobalt selenide 215-155-1 1307-99-9 Expert judgement
Iron selenide 215-177-1 1310-32-3 Expert judgement
Dipotassium selenide 215-198-6 1312-74-9 Expert judgement
Magnesium selenide 215-201-0 1313-04-8 Expert judgement
Manganese selenide 215-203-1 1313-22-0 Expert judgement
Disodium selenide 215-212-0 1313-85-5 Expert judgement
Nickel selenide 215-216-2 1314-05-2 Expert judgement
Diantimony triselenide 215-256-0 1315-05-5 Expert judgement
Tin selenide 215-257-6 1315-06-6 Expert judgement
Strontium selenide 215-258-1 1315-07-7 Expert judgement
Zinc selenide 215-259-7 1315-09-9 Expert judgement
Copper selenide 215-272-8 1317-41-5 Expert judgement
3-ethyl-2-[3-(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)prop-1-enyl]-5-methoxybenzoselenazolium iodide 298-770-8 93838-99-4 Expert judgement
5-chloro-3-ethyl-2-[[1-ethyl-4-[(3-ethyl-3H-benzoselenazol-2-ylidene)ethylidene]-5-oxo-3-phenylimidazolidin-2-ylidene]methyl]benzothiazolium iodide 298-771-3 93839-00-0 Expert judgement
2-[2-[(3-ethyl-5,6-dimethyl-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-6-methoxy-5-methyl-3-(3-sulphonatopropyl)benzoselenazolium 299-206-3 93857-70-6 Expert judgement
3-ethyl-2-[2-[(3-ethyl-5-methoxy-3H-benzoselenazol-2-ylidene)methyl]but-1-enyl]-5,6-dimethylbenzoselenazolium iodide 299-223-6 93857-89-7 Expert judgement
3-ethyl-2-[[1-ethyl-4-[(3-ethyl-3H-benzoselenazol-2-ylidene)ethylidene]-5-oxo-3-phenylimidazolidin-2-ylidene]methyl]benzoselenazolium iodide 300-877-2 93964-28-4 Expert judgement
3-ethyl-5,6-dimethyl-2-[2-[[5-methyl-3-(2-methyl-3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]methyl]but-1-enyl]benzothiazolium 303-101-0 94158-30-2 Expert judgement
2-[2-[(3-ethyl-6-methoxy-5-methyl-(3H)-benzoselenazol-2-ylidene)methyl]-1-butenyl]-1-(3-sulphonatopropyl)naphth[1,2-d]oxazolium 303-334-8 94166-38-8 Expert judgement
2-[3-[6-methoxy-5-methyl-3-(3-sulphonatopropyl)-3H-benzoselenazol-2-ylidene]-2-(methylthio)-1-propenyl]-1-methylnaphtho[1,2-d]thiazolium 303-336-9 94166-40-2 Expert judgement
2-[2-[[5,6-dimethyl-3-(4-sulphonatobutyl)-3H-benzoselenazol-2-ylidene]methyl]-1-butenyl]-1-ethylnaphtho[1,2-d]thiazolium 303-714-3 94213-13-5 Expert judgement
Selenious acid, phenylmethyl ester 309-043-2 99811-54-8 Expert judgement
Copper selenide - 37359-15-2 Expert judgement
Iron selenide - 50926-12-0 Expert judgement
3-(3-Sulfopropyl)-2-((3-(3-sulfopropyl)-2(3H)-benzoselenazolylidene)methyl)benzoselenazolium, hydroxide, inner salt, sodium salt - 55425-27-9 Expert judgement
Benzoselenazole, 2-methyl-5-phenyl- - 57478-60-1 Expert judgement
Selenic acid (H2SeO4), monosodium salt - 10112-94-4 Expert judgement
Cupric selenate pentahydrate - 10031-45-5 Expert judgement
Selenic acid, cadmium salt (1:1), dihydrate - 10060-09-0 Expert judgement
Nickel selenate (II) hexahydrate - 10101-99-2 Expert judgement
Magnesium selenate hexahydrate - 13446-28-1 Expert judgement
Selenic acid monohydrate - 13465-62-8 Expert judgement
Dipotassium selenite tetrahydrate - 41292-06-2 Expert judgement
Diammonium selenite monohydrate - 66375-26-6 Expert judgement
Lithium selenate monohydrate - 7790-71-8 Expert judgement
Calcium selenate dihydrate - 7790-74-1 Expert judgement
Benzoselenazolium, 5-methoxy-2-methyl-3-(4-sulfobutyl)-, hydroxide, inner salt - 63815-76-9 Expert judgement
Benzothiazolium, 2-(2-((3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl)-1-buten-1-yl)-6-methoxy-5-methyl-3-(3-sulfopropyl)-, inner salt - 63815-98-5 Expert judgement
Benzoselenazolium, 3-ethyl-5-methoxy-2-(2-(methylthio)-1-buten-1-yl)-, iodide (1:1) - 63816-17-1 Expert judgement
Benzenamine, 2,2'-diselenobis- - 63870-44-0 Expert judgement
Methaneselenol - 6486-05-1 Expert judgement
Quinolinium, 1-butyl-4-(3-(3-ethyl-2(3H)-benzoselenazolylidene)-1-propen-1-yl)-, iodide (1:1) - 65294-08-8 Expert judgement
Butanoic acid, 2-amino-4-(ethylseleno)- - 6810-64-6 Expert judgement
Selenium, waste acid ppt. - 69029-55-6 Expert judgement
5-Methoxy-2-((5-methyl-3-(3-sulfopropyl)-2(3H)-benzoselenazolylidene)methyl)-3-(3-sulfopropyl)benzoselenazolium, hydroxide, inner salt, sodium salt - 70679-43-5 Expert judgement
Benzothiazolium, 3-(2-carboxyethyl)-2-(2-((3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl)-1-buten-1-yl)-6-methoxy-5-methyl-, iodide (1:1) - 70942-37-9 Expert judgement
Selenium sulfide (SeS) - 7446-34-6 Expert judgement
Selenic acid, cobalt (2+) salt (1:1), hexahydrate - 7788-94-5 Expert judgement
Gold diselenide - 88608-76-8 Expert judgement
Cadmium selenide - 12400-33-8 Expert judgement
Arsenic selenide - 12626-31-2 Expert judgement
Gold selenide (Au2Se3) - 1303-62-4 Expert judgement
H2-O3-Se.1/2Na - 14013-56-0 Expert judgement
MERCURY (2) SELENITE - 14459-36-0 Expert judgement
3,3'-Diselenobisalanine - 1464-43-3 Expert judgement
Bis(ethylselenyl)diiron tetranitrosyl (6CI) - 15025-89-5 Expert judgement
Selenious acid, dithallium(1+) salt - 15123-92-9 Expert judgement
Selenious acid (H2SeO3), sodium salt (4:2) - 15855-80-8 Expert judgement
Selenious acid, ammonium salt (2:1) - 25425-97-2 Expert judgement
Rubidium selenite - 26271-85-2 Expert judgement
2,2'-Diselenobisethanamine - 2697-61-2 Expert judgement
3-Ethyl-2-methylselenazolium iodide - - Expert judgement
Benzoselenazolium, 3-ethyl-5-methoxy-2-methyl-, iodide - 2870-38-4 Expert judgement
5-Chloro-2-methylbenzoselenazole - 2946-15-8 Expert judgement
Benzoselenazolium, 2-methyl-3-(3-sulfopropyl)-, hydroxide, inner salt - 29680-54-4 Expert judgement
Disamarium selenide 274-796-5 70714-63-5 Expert judgement
6-methoxy-2,5-dimethylbenzoselenazole 274-966-9 70867-60-6 Expert judgement
1-ethyl-2-[3-(3-ethyl-3H-benzoselenazol-2-ylidene)prop-1-enyl]quinolinium iodide 276-697-2 72491-44-2 Expert judgement
3-methyl-5-phenyl-2-[2-[[3-(3-sulphonatobutyl)-3H-benzoselenazol-2-ylidene]methyl]but-1-enyl]benzoxazolium 278-389-3 76213-48-4 Expert judgement
2-[2-[(3-ethyl-5-methylbenzoselenazol-2(3H)-ylidene)methyl]but-1-enyl]-5,6-dimethyl-3-(3-sulphonatopropyl)benzothiazolium 280-796-6 83783-61-3 Expert judgement
1-ethyl-4-[(3-ethyl-3H-benzoselenazol-2-ylidene)methyl]quinolinium iodide 282-556-6 84255-09-4 Expert judgement
Ethyl 1-ethyl-2-[2-[(3-ethyl-5,6-dimethyl-3H-benzoselenazol-2-ylidene)methyl]-1-butenyl]naphtho[1,2-d]thiazolium sulphate 285-275-7 85050-02-8 Expert judgement
3-ethyl-2-[2-[[5-methoxy-3-(4-sulphonatobutyl)benzoselenazol-2(3H)-ylidene]methyl]but-1-enyl]-5,6-dimethylbenzothiazolium 285-276-2 85050-03-9 Expert judgement
3-(2-carboxyethyl)-2-[2-[[3-(2-carboxyethyl)-5-methyl-(3H)-benzoselenazol-2-ylidene]methyl]but-1-enyl]-5-methylbenzoselenazolium bromide 289-516-7 89703-05-9 Expert judgement
Benzenesulfonic acid, 2-formyl-, sodium salt, reaction products with disodium selenite and potassium cyanide 290-717-7 90218-42-1 Expert judgement

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