Registration Dossier
Registration Dossier
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EC number: 231-494-8 | CAS number: 7585-41-3
Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 974
- Report date:
- 1974
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- GLP compliance:
- no
- Test type:
- standard acute method
- Limit test:
- yes
Test material
- Reference substance name:
- Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
- EC Number:
- 231-494-8
- EC Name:
- Barium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
- Cas Number:
- 7585-41-3
- Molecular formula:
- C18H13ClN2O6S.Ba
- IUPAC Name:
- barium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate
- Test material form:
- solid: nanoform
- Details on test material:
- - Name of test material (as cited in study report): Litholscharlach 3700 / C.I.Pigmentred 48:1, Monoazofarbstoff.
- Analytical purity: 100 %
Test materials used in this dossier are all considered to fall under the definition of nano-materials according to the European Commission Recommendation 2011/696/EU as the synthesis and manufacturing of this pigment always yields particulate material with a fine particle size distribution.
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Litholscharlach 3700 / C.I.Pigmentred 48:1, Monoazofarbstoff.
- Analytical purity: 100 %
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Wiga, Ottobrunn, D.
- Mean weight at study initiation: males 137 g, females 123 g
ENVIRONMENTAL CONDITIONS
not reported
Administration / exposure
- Type of coverage:
- occlusive
- Vehicle:
- water
- Details on dermal exposure:
- TEST SITE
- Area of exposure: dorsal, p.c., 50 cm2
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 2.5 g/kg animal
- Concentration (if solution): 50 % aequous suspension
- For solids, paste formed: yes
- Duration of exposure:
- 24 h
- Doses:
- 2500 mg/kg bw
- No. of animals per sex per dose:
- 5
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: No weighing was done. Observation was several times at the day of exposure and presumably daily exception of weekends and holidays afterwards.
- Necropsy of survivors performed: yes - Statistics:
- LD50 was estimated approximately
Results and discussion
Effect levels
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 500 mg/kg bw
- Mortality:
- 0/10 animals died after the 24h h exposure
- Clinical signs:
- other: no abnormalities detected
- Gross pathology:
- No abnormalities detected
- Other findings:
- - After 24 hours: 10/10 red substance residues, local erythema not detectable.
- After 8 days: 10/10 animals: pink-coloured substance residues
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
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