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EC number: 256-457-3 | CAS number: 49744-26-5
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Oct 1975
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 975
- Report date:
- 1975
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: Code of Federal Regulations, Title 16, Section 1500.41 (US)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2-(2-methoxyethoxy)ethyl 4-[(5-cyano-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxopyridin-3-yl)azo]benzoate
- EC Number:
- 256-457-3
- EC Name:
- 2-(2-methoxyethoxy)ethyl 4-[(5-cyano-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxopyridin-3-yl)azo]benzoate
- Cas Number:
- 49744-26-5
- Molecular formula:
- C21H24N4O6
- IUPAC Name:
- 2-(2-methoxyethoxy)ethyl 4-[(5-cyano-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxopyridin-3-yl)azo]benzoate
- Test material form:
- solid: granular
- Details on test material:
- Disperse Yellow 126
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- not specified
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Amount / concentration applied:
- 0.5 g (paste, moistened with distilled water)
- Duration of treatment / exposure:
- 24 h
- Observation period:
- 72 h
- Number of animals:
- 6
- Details on study design:
- TEST SITE
- Area of exposure: 1 square inch
REMOVAL OF TEST SUBSTANCE
- Washing (if done): no
- Time after start of exposure: 24 h
OBSERVATION TIME POINTS
24 h, 48 h, 72 h
SCORING SYSTEM:
- Method of calculation: Draize system
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- No signs of irritation occurred.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Based on an in vivo study with 6 rabbits, the substance is not irritating to skin.
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