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EC number: 217-090-4 | CAS number: 1738-25-6
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study meets scientific standards with acceptable restrictions (limited documentation, exposure for 1-15 min and 20h)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 975
- Report date:
- 1975
Materials and methods
- Principles of method if other than guideline:
- Skin irritation was tested using an internal standard method (BASF test). White Vienna rabbits were used. Usually, 2 animals were treated for 1, 5 and 15 minutes and 2 other animals for 20 hours using occlusive conditions. An application site of 2.5 X 2.5 cm was covered with the liquid test substance.
- GLP compliance:
- no
Test material
- Reference substance name:
- 3-dimethylaminopropiononitrile
- EC Number:
- 217-090-4
- EC Name:
- 3-dimethylaminopropiononitrile
- Cas Number:
- 1738-25-6
- Molecular formula:
- C5H10N2
- IUPAC Name:
- 3-(dimethylamino)propanenitrile
- Details on test material:
- - Name of test material (as cited in study report): N,N-Dimethyl-amino-propionitril
- Physical state: liquid
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- Vienna White
Test system
- Type of coverage:
- occlusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- ca. 0.5 mL
- Duration of treatment / exposure:
- Experiment 1: 1, 5, or 15 minutes
Experiment 2: 20 h - Observation period:
- Experiment 1: up to 8 days
Experiment 2: up to 8 days - Number of animals:
- 2 per experiment
- Details on study design:
- TEST SITE
- Area of exposure: An application site of 2.5 X 2.5 cm was covered with the liquid (37°C; approx. 1 ml)
REMOVAL OF TEST SUBSTANCE
- Washing:
Experiment 1: washing was done in the 1 min, 5 min and 15 min test directly after exposure. Lutrol 50% (mild detergent) was used.
Experiment 2: No washing was done after the 20 h treatment.
SCORING SYSTEM: Descriptive scores of the raw data have been converted to Draize numerical scores
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Remarks:
- 20 h exposure
- Time point:
- other: 24 - 48 - 72 h
- Score:
- 0.5
- Max. score:
- 4
- Reversibility:
- fully reversible within: 4 d
- Remarks on result:
- other: 1/2 animals without any signs of irritation
- Irritation parameter:
- edema score
- Basis:
- mean
- Remarks:
- 20 h exposure
- Time point:
- other: 24 - 48 - 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: no effects
Any other information on results incl. tables
Exposure to one, five or 15 min caused no erythema or edema.
Applicant's summary and conclusion
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