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EC number: 251-964-6 | CAS number: 34364-26-6
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:
- guideline study
- Remarks:
- Details about animal housing conditions were missing and the age and sex of the animals were not stated. Additionally, topical anesthetics and systemic analgesics were not used. No sequential testing was performed and no rationale for in vivo testing was available. The test substance was insufficiently described.
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 984
- Report date:
- 1984
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- 2017-10-09
- GLP compliance:
- yes
- Remarks:
- no certificate included
Test material
- Reference substance name:
- Bismuth(3+) neodecanoate
- EC Number:
- 251-964-6
- EC Name:
- Bismuth(3+) neodecanoate
- Cas Number:
- 34364-26-6
- Molecular formula:
- C10H19O2.xBi
- IUPAC Name:
- tris[(3,3,5,5-tetramethylhexanoyl)oxy]bismuthine
- Details on test material:
- - Density: 1.13- 1.14 mg/ml
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: New York State Rabbit Development, Hartwick, NY
- Weight at study initiation: 2.42- 3.13 kg
- Housing: The rabbits were individually housed in wire mesh bottom cages in an environment- controlled room
- Diet (e.g. ad libitum): NIH Animal Feed A (certified)
- Water (e.g. ad libitum): yes
- Acclimation period: a minimum of 5 days
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: untreated contralateral eye as negative control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL
- Concentration (if solution): undiluted - Duration of treatment / exposure:
- 72 hours
- Observation period (in vivo):
- The eyes were examined with the aid of sodium fluorescein and the grade of ocular reaction for each animal was recorded at 1, 24, 48 and 72 hours post-dose using the Draize scale for scoring ocular lesions.
- Number of animals or in vitro replicates:
- 6 animals
- Details on study design:
- PROCEDURE: a volume of 0.1 mL of the test article was instilled into one eye of each rabbit. The test article was instilled into the eye by gently pulling the lower lid away from the eyeball to form a cup into which the test article was deposited. The lid were then held together for one second.
SCORING SYSTEM: Draize scale for scoring ocular lesions
TOOL USED TO ASSESS SCORE: fluorescein
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #4
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #4
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #4
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #4
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #5
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #5
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #5
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #5
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #6
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- iris score
- Basis:
- animal #6
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #6
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- chemosis score
- Basis:
- animal #6
- Remarks:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- According to the regulation EC No. 1272/2008 bismuth neodecanoate (Cos Cat 83) does not need to be classified as irritating to the eyes.
- Executive summary:
To evaluate the ocular irritation potential of the test article an eye irritation study in rabbits was conducted. Bismuth neodecanoate was instilled into one eye of six young adult New Zealand White rabbits. The untreated eye served as negative control. The eyes were examined with the aid of sodium fluorescein and the grade of ocular reaction for each animal was recorded at 1, 24, 48 and 72 hours post-dose using the Draize scale for scoring ocular lesions. Observed eye effects were reversible after 72 hours and the mean of the grading at 24, 48 and 72 hours after dosing were below the classification criteria given in the regulation EC 1272/2008. Thus, no classification for eye irritation is required.
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