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EC number: 257-804-1 | CAS number: 52277-71-1
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- other: experimental data on similiar substance
- Adequacy of study:
- key study
- Study period:
- 1979-10-22 to 1980-03-26
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
- Report date:
- 1980
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Fed. Reg. 38, No. 187, § 1500.41 (Draize test)
- Version / remarks:
- 1973
- GLP compliance:
- no
Test material
- Reference substance name:
- Reaction mass of sodium [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and sodium bis[1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and sodium bis[1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-)
- IUPAC Name:
- Reaction mass of sodium [1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)][1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and sodium bis[1-[(2-hydroxy-4-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-) and sodium bis[1-[(2-hydroxy-5-nitrophenyl)azo]-2-naphtholato(2-)]chromate(1-)
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- Vienna White
- Details on test animals or test system and environmental conditions:
- Mean body weight: males 3.16 kg, female 3.46 kg
The animals were offered a standardized animal laboratory diet.
Test system
- Type of coverage:
- occlusive
- Preparation of test site:
- other: intact and abraded skin
- Vehicle:
- water
- Controls:
- other: untreated skin of the animals
- Amount / concentration applied:
- about 0.5 g of a 50 % aqueous test substance preparation
- Duration of treatment / exposure:
- 24 hours
- Observation period:
- 8 days
- Number of animals:
- 6 (5 males, 1 female)
- Details on study design:
- Application area: 2.5 x 2.5 cm
Application site: back
The test substance was not washed off.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 24 h / 72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- other: intact skin
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 24 h / 72 h
- Score:
- 0.75
- Max. score:
- 4
- Reversibility:
- fully reversible
- Remarks on result:
- other: abraded skin
- Irritant / corrosive response data:
- Due to substance-coloured skin, determination of the erythema score was not possible.
Applicant's summary and conclusion
- Interpretation of results:
- other: not classified under Regulation 1272/2008
- Conclusions:
- Not irritant to skin
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