Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 261-245-9 | CAS number: 58430-94-7
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 5.64 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 25
- Dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 141.05 mg/m³
- Explanation for the modification of the dose descriptor starting point:
No inhalation study available. DNEL computation based on 8 h exposure time. 100% bioavailability via oral route as via the inhalation route, as esters of branched-chain aliphatic acyclic alcohols are rapidly hydrolysed and absorbed from the gastrointestinal tract (Semino, 1998: http://www.inchem.org/documents/jecfa/jecmono/v040je13.htm).
Corrected inhalatory NOAEC = 80 mg/kg/day*(1/0.38 m3/kg/day)*(6.7 m3 (8h)/10 m3 (8h)) = 141.05 mg/m3
- AF for dose response relationship:
- 1
- Justification:
- The dose response relationship is considered unremarkable, therefore no additional factor is used.
- AF for differences in duration of exposure:
- 2
- Justification:
- The default extrapolation factor for exposure duration is used: starting point - subchronic (NOAEL oral derived from an OECD 408 study) to chronic (end point).
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- Respiratory interspecies differences are fully covered by the factors used for route to route extrapolation.
- AF for other interspecies differences:
- 2.5
- Justification:
- Recommended AF for other interspecies differences.
- AF for intraspecies differences:
- 5
- Justification:
- The default value for the relatively homogenous group "worker" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- The approach used for DNEL derivation is conservative. No further assessment factors are required.
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.8 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
It is assumed that rat oral and dermal absorptions are equal to human oral and dermal absorption.
- AF for dose response relationship:
- 1
- Justification:
- The dose response relationship is considered unremarkable, therefore no additional factor is used.
- AF for differences in duration of exposure:
- 2
- Justification:
- The default extrapolation factor for exposure duration is used: starting point - subchronic (NOAEL oral derived from an OECD 408 study) to chronic (end point).
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- The default allometric scaling factor for the differences between rats and humans is used.
- AF for other interspecies differences:
- 2.5
- Justification:
- Recommended AF for other interspecies differences.
- AF for intraspecies differences:
- 5
- Justification:
- The default value for the relatively homogenous group "worker" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- The approach used for DNEL derivation is conservative. No further assessment factors are required.
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
- Route of original study:
- Dermal
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- skin irritation/corrosion
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - workers
Worker
The primary route of industrial exposure to the test item is by skin contact and inhalation. In an industrial setting, ingestion is not an expected route of exposure.
DNEL derivation for the test item is performed under consideration of the recommendations of ECHA. In view of the data used for evaluation, the "quality of whole database factors" is considered to a value of 1, and is thus not shown in the calculations presented below.
Acute, systemic DNEL
Short-term DNELs are not required as the acute toxicity of the test item is low. The test substance is not classified and labelled for acute systemic toxicity, according to Regulation (EC) 1272/2008 (CLP), based on the test data for acute oral and dermal toxicity. Inhalation toxicity is also regarded as low due to the physico-chemical properties of the test substance.
Acute/long-term, local
No skin sensitization potential was observed in the available experimental data with the test item. The substance is therefore not classified as skin sensitiser according to Regulation (EC) No 1272/2008 (CLP). The substance is not classified as skin irritant in respective in vitro studies and thus no local dermal DNELs are required.
Long-term, systemic DNEL
Occupational exposure to the test item occurs mainly by dermal route, and may also occur by inhalation exposure. Therefore long-term dermal and inhalation DNELs are calculated for workers. In view of the data used for evaluation, the "quality of whole database factor" is considered to a value of 1, and is thus not shown in the calculations presented below.
Exposure by inhalation
Step 1: Selection of the relevant dose descriptor (starting point):
The NOAEL of 80 mg/kg bw/day, assessed in the key repeated dose oral toxicity study (OECD 408, 2016) is identified as the relevant dose descriptor and starting point.
Step 2: Modification into a correct starting point:
Using a conservative approach, a worker DNEL (long-term inhalation exposure) is derived. This worker long-term DNEL is considered to ensure an appropriate level of protection with regard to acute inhalation exposure (no high peaks of exposure expected).
Relevant dose descriptor (NOAEL): 80 mg/kg bw/day
Standard respiratory volume of the rat (sRVrat) for 8 hours: 0.38 m³/kg bw/d
Oral absorption of the rat / inhalation absorption of humans (ABSoral-rat / ABSinh-human): 1
Standard respiratory volume of humans (sRVhuman) for 8 hours: 6.7 m³
Worker respiratory volume (wRV) for 8 hours with light physical activity: 10 m³
Corrected inhalatory NOAEC for workers
= 80 mg/kg bw/d × 1 × (1 / 0.38 m³/kg bw/d) × (6.7 m³/10 m³)
= 141.05 mg/m³
Step 3: Use of assessment factors: 25
Interspecies: no allometric scaling factor is applied because an oral-to-inhalation route extrapolation is performed.
Interspecies AF, remaining differences: no evidence for species differences in the general mode of action
Intraspecies AF (worker): 5
Interspecies AF, remaining differences: 2.5
Dose response relationship AF: 1
Exposure duration AF (subchronic to chronic): 2
In conclusion, the long-term inhalation DNEL, worker = 5.64 mg/m3
Dermal exposure
Step 1: Selection of the relevant dose descriptor (starting point):
The NOAEL of 80 mg/kg bw/day, assessed in the repeated dose oral toxicity study (OECD 408, 2016) was identified as the relevant dose descriptor and starting point.
Step 2: Modification into a correct starting point:
Using a conservative approach, a worker DNEL (long-term dermal exposure) is derived. Based on the physico-chemical properties of test item a dermal absorption of 100 % is assumed as a worst case scenario.
In conclusion, dermal NOAEL = oral NOAEL
Step 3: Use of assessment factors: 100
Interspecies AF, allometric scaling (rat to human): 4
Interspecies AF, remaining differences: 2.5
Interspecies AF, remaining differences: Interspecies differences are fully covered by the allometric scaling
Intraspecies AF (worker): 5
Dose-response relationship AF: 1
Exposure duration AF (OECD408, exposure period 90 days): 2
In conclusion, long term systemic dermal DNEL, workers = 0.8 mg/kg bw/day
References
(not included as endpoint study record)
- ECHA (2012). Guidance on information requirements and chemical safety assessment. Chapter R.8: Characterisation of dose [concentration]-response for human health. Version 2. ECHA-2010 -G-19 –EN.
- ECHA (2014). Guidance on information requirements and chemical safety assessment. Chapter R.7.C: Endpoint specific guidance: Guidance on Toxicokinetics. Nov 2014.
- ECHA (2012) Practical Guide 15: How to undertake a qualitative human health assessment and document it in a chemical safety report, November 2012.
General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.4 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 50
- Dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 69.6 mg/m³
- Explanation for the modification of the dose descriptor starting point:
No inhalation study available. DNEL computation based on 24 h exposure time. 100% bioavailability via oral route as via the inhalation route, as esters of branched-chain aliphatic acyclic alcohols are rapidly hydrolysed and absorbed from the gastrointestinal tract (Semino, 1998: http://www.inchem.org/documents/jecfa/jecmono/v040je13.htm). Corrected inhalatory NOAEC = 80 mg/kg bw/day*(1/1.15 m3/kg/day) = 69.6 mg/m3
- AF for dose response relationship:
- 1
- Justification:
- The dose response relationship is considered unremarkable, therefore no additional factor is used.
- AF for differences in duration of exposure:
- 2
- Justification:
- The default extrapolation factor for exposure duration is used: subchronic (starting point) to chronic (end point).
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- The default allometric scaling factor for the differences between rats and humans is used.
- AF for other interspecies differences:
- 2.5
- Justification:
- Recommended AF for other interspecies differences.
- AF for intraspecies differences:
- 10
- Justification:
- The default value for the more heterogenous group "general population" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- The approach used for DNEL derivation is conservative. No further assessment factors are required.
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.4 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
It is assumed that rat oral and dermal absorptions are equal to human oral and dermal absorptions.
- AF for dose response relationship:
- 1
- Justification:
- The dose response relationship is considered unremarkable, therefore no additional factor is used.
- AF for differences in duration of exposure:
- 2
- Justification:
- The default extrapolation factor for exposure duration is used: subchronic (starting point) to chronic (end point).
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- The default allometric scaling factor for the differences between rats and humans is used.
- AF for other interspecies differences:
- 2.5
- Justification:
- Recommended AF for other interspecies differences.
- AF for intraspecies differences:
- 10
- Justification:
- The default value for the more heterogenous group "general population" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- The approach used for DNEL derivation is conservative. No further assessment factors are required.
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- skin irritation/corrosion
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.4 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Dose descriptor starting point:
- NOAEL
- Value:
- 80 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
no route-to-route extrapolation performed.
- AF for dose response relationship:
- 1
- Justification:
- The dose response relationship is considered unremarkable, therefore no additional factor is used.
- AF for differences in duration of exposure:
- 2
- Justification:
- The default extrapolation factor for exposure duration is used: subchronic (starting point) to chronic (end point).
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- The default allometric scaling factor for the differences between rats and humans is used.
- AF for other interspecies differences:
- 2.5
- Justification:
- Recommended AF for other interspecies differences.
- AF for intraspecies differences:
- 10
- Justification:
- The default value for the more heterogenous group "general population" is used.
- AF for the quality of the whole database:
- 1
- Justification:
- The quality of the whole data base is considered to be sufficient and uncritical.
- AF for remaining uncertainties:
- 1
- Justification:
- The approach used for DNEL derivation is conservative. No further assessment factors are required.
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
General Population - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - General Population
General population
DNEL derivation for the test item is performed under consideration of the recommendations of ECHA. In view of the data used for evaluation, the "quality of whole database factors" is considered to a value of 1, and is thus not shown in the calculations presented below.
Acute, systemic DNEL
Short-term DNELs are not required as the acute toxicity of the test item is low. The test substance is not classified and labelled for acute systemic toxicity, according to Regulation (EC) 1272/2008 (CLP), based on the test data for acute oral and dermal toxicity. Inhalation toxicity is also regarded as low due to the physico-chemical properties of the test substance.
Acute/long-term, local
No skin sensitization potential was observed in the available experimental data with the test item. The substance is therefore not classified as skin sensitizer according to Regulation (EC) No 1272/2008 (CLP). The substance is not classified as skin irritant in respective in vitro studies and thus no local dermal DNELs are required.
Long-term, systemic DNEL for General population
Exposure by inhalation
Step 1: Selection of the relevant dose descriptor (starting point):
The NOAEL of 80 mg/kg bw/day, assessed in the key repeated dose oral toxicity study (OECD 408, 2016) is identified as the relevant dose descriptor and starting point.
Step 2: Modification into a correct starting point:
Using a conservative approach, a general population DNEL (long-term inhalation exposure) is derived considering a the same absorption via inhalation than oral absorption.
Relevant dose descriptor (NOAEL): 80 mg/kg bw/day
Standard respiratory volume of the rat (sRVrat) for 24 hours: 1.15 m³/kg bw/d
Oral absorption of the rat / inhalation absorption of humans (ABSoral-rat / ABSinh-human): 1
Corrected inhalatory NOAEC for general populations
= 80 mg/kg bw/d × (1 / 1.15 m³/kg bw/d)
= 69.6 mg/m³
Step 3: Use of assessment factors: 50
Interspecies: no allometric scaling factor is applied because an oral-to-inhalation route extrapolation is performed.
Interspecies AF, remaining differences: no evidence for species differences in the general mode of action
Intraspecies AF (general population): 10
Interspecies AF, remaining differences: 2.5
Dose response relationship AF: 1
Exposure duration AF (subchronic to chronic): 2
In conclusion, the long-term inhalation DNEL, general population = 1.4 mg/m3
Dermal exposure
Step 1: Selection of the relevant dose descriptor (starting point): The NOAEL of 80 mg/kg bw/day, assessed in the repeated dose oral toxicity study (OECD 408, 2016) was identified as the relevant dose descriptor and starting point.
Step 2: Modification into a correct starting point:
Using a conservative approach, a general population DNEL (long-term dermal exposure) is derived. The same dermal absorption as compared to oral absorption is assumed.
In conclusion, dermal NOAEL = oral NOAEL
Step 3: Use of assessment factors: 200
Interspecies AF, allometric scaling (rat to human): 4
Interspecies AF, remaining differences: Interspecies differences are fully covered by the allometric scaling
Intraspecies AF (general population): 10
Interspecies AF, remaining differences: 2.5
Dose response relationship AF: 1
Exposure duration AF (OECD408, exposure period 90 days): 2
In conclusion, long term systemic dermal DNEL, general populations = 0.4 mg/kg bw/day
Oral exposure
An oral DNEL (long term, systemic) for the general population is derived.
Step 1: Selection of the relevant dose descriptor (starting point):
A 90-day toxicity study according to OECD TG 408 (2016) is selected for DNEL derivation as it is the relevant repeated dose study performed in accordance to OECD guideline and GLP. In this study, the oral NOAEL in rats is 80 mg/kg bw/day.
Step 2: Use of assessment factors: 200
Interspecies AF, allometric scaling (rat to human): 4
Interspecies AF, remaining differences: 2.5
Intraspecies AF (general population): 10
Dose response relationship AF: 1
Exposure duration AF: 2
In conclusion, long term systemic oral DNEL, general population = 0.4 mg/kg bw/day
References
(not included as endpoint study record)
- ECHA (2012). Guidance on information requirements and chemical safety assessment. Chapter R.8: Characterisation of dose [concentration]-response for human health. Version 2. ECHA-2010 -G-19 –EN.
- ECHA (2014). Guidance on information requirements and chemical safety assessment. Chapter R.7.C: Endpoint specific guidance: Guidance on Toxicokinetics. Nov 2014.
- ECHA (2012) Practical Guide 15: How to undertake a qualitative human health assessment and document it in a chemical safety report, November 2012.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.