Registration Dossier
Registration Dossier
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EC number: 257-885-3 | CAS number: 52372-39-1
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1978
- 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:
- 1 978
- Report date:
- 1978
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: FDA US Federal Register 38 No. 187
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- GLP compliance:
- no
Test material
- Reference substance name:
- 3-(diethylamino)-7-imino-7H-[1]benzopyrano[3',2':3,4]pyrido[1,2-a]benzimidazole-6-carbonitrile
- EC Number:
- 257-885-3
- EC Name:
- 3-(diethylamino)-7-imino-7H-[1]benzopyrano[3',2':3,4]pyrido[1,2-a]benzimidazole-6-carbonitrile
- Cas Number:
- 52372-39-1
- Molecular formula:
- C23H19N5O
- IUPAC Name:
- 17-(diethylamino)-11-imino-14-oxa-3,10-diazapentacyclo[11.8.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-1(21),2,4,6,8,12,15(20),16,18-nonaene-12-carbonitrile
- Test material form:
- solid
- Details on test material:
- Disperse Red 277
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- not specified
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 50 mg - Duration of treatment / exposure:
- 24 h
- Observation period (in vivo):
- 72 h
- Number of animals or in vitro replicates:
- 6
- Details on study design:
- Animals were observed after 24, 48 and 72 h.
SCORING SYSTEM: Draize
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.44
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis 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:
- Slight conjunctivae redness occurred within 24 h and was fully reversible within 72 h. No significant signs of irritation or corrosion were observed.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Slight conjunctivae redness occurred within 24 h and was fully reversible within 72 h. The substance is not irritating to eyes and not classifiable according to CLP criteria.
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