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EC number: 239-032-7 | CAS number: 14960-06-6
Toxicological information
Eye irritation
Currently viewing:
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:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 982
- Report date:
- 1982
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- yes
- Remarks:
- modified draize test
- Principles of method if other than guideline:
- Based on Draize et al. J. Pharmacal. Exp. Ther. 83 : 377-390, 1944.
- GLP compliance:
- no
Test material
- Reference substance name:
- Sodium N-(2-carboxyethyl)-N-dodecyl-β-alaninate
- EC Number:
- 239-032-7
- EC Name:
- Sodium N-(2-carboxyethyl)-N-dodecyl-β-alaninate
- Cas Number:
- 14960-06-6
- Molecular formula:
- C18H35NO4.Na
- IUPAC Name:
- sodium 3-[(2-carboxyethyl)(dodecyl)amino]propanoate
Constituent 1
- Specific details on test material used for the study:
- PRODUCT IDENTIFICATION: sodium N-(2-carboxyethyl)-N-dodecyl-β-alaninate, 16% Solids, pH 7.0, #54R-74
PRODUCT DESCRIPTION: Clear yellow liquid.
PSL NO.: E20506-2
PRODUCT IDENTIFICATION: Mirataine H2C-HA
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Three New Zealand White Rabbits from T. Hanna Colony.
- Housing: individually housed in stainless steel wire bottomed cages
- Diet: ad libitum
- Water: ad libitum
ENVIRONMENTAL CONDITIONS
- Temperature: 68 - 72°F.
- Air changes: environmentally controlled room
- Photoperiod (hrs dark / hrs light):12 / 12
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL
- Concentration: 16%
The test material was placed on the everted lower lid of one eye of each rabbit. The upper and lower lids were gently held together for 1 second before releasing, to prevent loss of the test material. - Duration of treatment / exposure:
- 24h, no washout
- Observation period (in vivo):
- At 24, 48 and 72 hours, and at 4 and 7 days.
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing: no
SCORING SYSTEM: Draize scoring system
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 4
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 1.3
- Max. score:
- 4
- Reversibility:
- fully reversible within: 2 days
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 3.7
- Max. score:
- 4
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 2.7
- Max. score:
- 4
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 3
- Max. score:
- 4
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- other: Discharge
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 3
- Max. score:
- 3
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- other: Discharge
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 3 days
- Irritation parameter:
- other: Discharge
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 2.7
- Max. score:
- 3
- Reversibility:
- fully reversible within: 3 days
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 2.3
- Max. score:
- 3
- Reversibility:
- not fully reversible within: 7 days
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 2.3
- Max. score:
- 3
- Reversibility:
- not fully reversible within: 7 days
Applicant's summary and conclusion
- Interpretation of results:
- Category 1 (irreversible effects on the eye) based on GHS criteria
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