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Registration Dossier
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EC number: 202-496-6 | CAS number: 96-29-7
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- 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:
- other company data
- Title:
- Unnamed
- Year:
- 1 978
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Butanone oxime
- EC Number:
- 202-496-6
- EC Name:
- Butanone oxime
- Cas Number:
- 96-29-7
- Molecular formula:
- C4H9NO
- IUPAC Name:
- (NE)-N-butan-2-ylidenehydroxylamine
- Test material form:
- liquid
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: contralateral eye used as untreated control
- Observation period (in vivo):
- 72 hours
- Number of animals or in vitro replicates:
- 6
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- other: necrosis
- Basis:
- mean
- Time point:
- other: 24-72 hours
- Score:
- >= 2
- Reversibility:
- not reversible
- Remarks on result:
- other: necrosis observed in two of six animals
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Remarks on result:
- not determinable because of methodological limitations
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Remarks on result:
- not determinable because of methodological limitations
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Remarks on result:
- not determinable because of methodological limitations
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Remarks on result:
- not determinable because of methodological limitations
- Irritant / corrosive response data:
- MEKO was determined to be a corrosive eye irritant in rabbits. Corneal opacity, iritis, conjunctival hyperaemia and necrosis were observed 24, 48, and 72 hours post exposure.
Applicant's summary and conclusion
- Interpretation of results:
- other: Category 1 based on CLP criteria (EU criteria according to Regulation (EC) No. 1272/2008)
- Conclusions:
- Methyl ethyl ketoxime was corrosive to the eye of rabbits when applied undiluted.
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