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EC number: 215-397-8 | CAS number: 1325-54-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 40215.
- 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

Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1993
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 993
- Report date:
- 1993
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 (Acute Toxicity (Oral))
- Qualifier:
- according to guideline
- Guideline:
- other: WHO/VBC 88.953
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- acute toxic class method
- Limit test:
- yes
Test material
- Reference substance name:
- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
- EC Number:
- 215-397-8
- EC Name:
- Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
- Cas Number:
- 1325-54-8
- Molecular formula:
- Molecular formula of the main constituents: (1) C38H24N8Na4O12S4 (2) C52H32N10Na6O18S6
- IUPAC Name:
- decasodium 2-[(1E)-2-{2-sulfonato-4-[(1E)-2-{3-sulfonato-4-[(1E)-2-{2-sulfonato-4-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate 2-[(1E)-2-{2-sulfonato-4-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Batch Number: 623
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: TIf: RAI f (SPF)
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: CIBA-GEIGY Limited Animal Production 4332 Stein / Switzerland
- Weight at study initiation: 177 to 206g
- Fasting period before study: overnight
- Housing: in Macrolon cages type 4, with standardized soft wood beeding.
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 2 °C
- Humidity (%):55 ± 10%
- Air changes (per hr): 15 air changes per hour.
- Photoperiod (hrs dark / hrs light): 12 hour /day light cycle.
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Details on oral exposure:
- Administration of the test article: One single oral dose, by gastric intubation (gavage)
VEHICLE
Distilled water
- Concentration in vehicle: 10 ml/kg body weight
- Amount of vehicle (if gavage): 2000 mg/kg
- Lot/batch no. (if required): 623
- Purity: 27%
MAXIMUM DOSE VOLUME APPLIED: 2000 mg/kg
DOSAGE PREPARATION (if unusual):
CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose: - Doses:
- 2000 mg/kg (males and females)
Volume applied: 10 ml/kg bw - No. of animals per sex per dose:
- 5 males, 5 females (total number of animals: 10)
- Control animals:
- yes
- Details on study design:
- Limit test
Observations and records
Mortality: daily; a.m. and p.m. on working days, a.m. on weekend days.
Signs and symptoms; daily for 14 days.
Body weight: immediately before administration and on days 7 and 14.
Necropsies: The animals were submitted to a gross necropsy at the end of the observation period.
Results and discussion
Effect levels
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- 2 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortalities occurred in this study.
- Clinical signs:
- other: Piloerection, hunched posture, and dyspnea were seen, being common symptoms in acute tests . Additionally, diarrhea was observed in the females. The animals recovered within 5 days.
- Gross pathology:
- At necropsy, a spotted thymus was found in one female. No deviations from normal morphology were found in the remaining animals.
Any other information on results incl. tables
|
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- Upon an acute oral administration and a 14 day post-treatment observation period, the following LD50 (with 95% confidence limits calculated , where possible) was determined for the tested material.
LD50 in male rats: greater than 2000 mg/kg body weight
LD50 in female rats: greater than 2000 mg/kg body weight
LD50 in rats of both sexes: greater than 2000 mg/kg body weight - Executive summary:
10 young adult rats (5 males and 5 females Tif: Rai f) were housed in Macrolon cages type 4 and acclimatized at least for 5 days before administration. 2000 mg/kg of the test article solved in water was administrated in one single oral dose by gastric intubation. During 14 days the mortality, signs and symptoms were observed daily. The body weight was measured immediately before administration and on days 7 and 14 of the study and necropsies at the end of the observation period.
In conclusion, after 14 day post-treatment observation period, the LD50 in rats of both sexes is greater than 2000 mg/kg body weight.
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