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EC number: 228-788-3 | CAS number: 6358-87-8
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 17 Jul 2006 to 28 Jul 2006
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (OECD 405), GLP compliant
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 006
- Report date:
- 2006
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
- EC Number:
- 228-788-3
- EC Name:
- Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
- Cas Number:
- 6358-87-8
- Molecular formula:
- C36H28Cl2N8O6
- IUPAC Name:
- diethyl 4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate)
- Test material form:
- solid: nanoform
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Harlan Netherlands, Horst, Netherlands
- Age at study initiation: 13-14 weeks (males), 10-12 weeks (females)
- Weight at study initiation: 2488-2557 g
- Housing: individually in stainless steel cages
- Diet (ad libitum): Provimi Kliba 3418 rabbit diet (Provimi Kliba, Kaiseraugst, Switzerland)
- Water (ad libitum): community tap water
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 17-23
- Humidity (%): 30-70
- Air changes (per hr): 10-15
- Photoperiod (hrs dark / hrs light): 12/12
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: untreated eye served as internal control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 g - Duration of treatment / exposure:
- 7 days
- Observation period (in vivo):
- 7 days (single instillation without washing)
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing (if done): no
- Time after start of exposure:
SCORING SYSTEM:
according to guidelines
TOOL USED TO ASSESS SCORE: diagnostic lamp
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 h
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 48 h
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects observed
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- - no corneal opacity, iritis or chemosis at any time point (score 0)
- conjunctivae redness scores after 1 h, 24, h, 48 h, 72 h, 7d:
animal #1: 1, 1, 1, 0, 0
animal #2: 1, 0, 0, 0, 0
animal #3: 1, 1, 0, 0, 0
- Slight discharge was evident in all animals 1 h after application and remnants of the test item were obervable in the eyes or conjunctival sac up to 72 h
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- Under the conditions of this study the test itme was not irritating to the eyes of rabbits
- Executive summary:
In an eye irritation study according to guidelines OECD 405 and EU B.5, 100 mg of the test item were applied to the conjunctival sac of the left eyes of 3 New Zealand Albino rabbits. 1 h after application the conjunctivae showed slight reddening, which was reversible within 72 h. The mean conjunctivae redness scores (mean of 34, 48, 72h) of the animals #1, #2, #3 were 0.67, 0.00, 0.33, respectively.There were no effects on iris, cornea or conjunctivae chemosis (all scores 0). Under the conditions of this study the test item was not irritating to the eyes of rabbits.
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