Registration Dossier
Registration Dossier
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EC number: 217-210-5 | CAS number: 1777-82-8
Toxicological information
Skin irritation / corrosion
Currently viewing:
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1998-02-17 to 1998-02-28
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Experimental study according to guideline and GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
- Report date:
- 1998
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2500 (Acute Dermal Irritation)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2,4-dichlorobenzyl alcohol
- EC Number:
- 217-210-5
- EC Name:
- 2,4-dichlorobenzyl alcohol
- Cas Number:
- 1777-82-8
- Molecular formula:
- C7H6Cl2O
- IUPAC Name:
- (2,4-dichlorophenyl)methanol
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Harlan UK Ltd. Bicester
- Weight at study initiation: 3.11 to 3.89 kg
- Housing: single, floor pens (min 0.6 m2)
- Diet: ad libitum, SQC TRB Rabbit Diet 9603 (pelleted) from Harlan Teklad, Bicester
- Water: ad libitum, mains water
- Acclimation period: 10 to 14 weeks
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 16-22
- Humidity (%): 40-80
- Air changes (per hr): 10
- Photoperiod (hrs dark / hrs light): 12/12
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- undiluted, 500 mg (treatment side was moistured with water)
- Duration of treatment / exposure:
- 4 h
- Observation period:
- 3 days
- Number of animals:
- 6
- Details on study design:
- TEST SITE
- Area of exposure: dorsal, 30*20 mm
- Type of wrap if used: dense gauze patch, covered by a larger gauze patch and an open weave, elasticated adhesive bandage "Steroban" from Steroplast Ltd., Bredbury, UK which was wrapped firmly around the torso to secure the applied dose and patch in the correct position.
REMOVAL OF TEST SUBSTANCE
- Washing: light brushing and swabbing with moist cotton wool
- Time after start of exposure: 4 h
SCORING SYSTEM:
- Erythema and eschar Grade
No erythema: 0
Very slight erythema: 1
WelI-defined erythema: 2
Moderate erythema: 3
Severe erythema (beet redness) or eschar preventing reading of erythema: 4
- Oedema Grade
No oedema 0
Very slight oedema (barely perceptible): 1
Slight oedema (edges of area well-defined by definite raising): 2
Moderate oedema (edges raised approximately 1 mm): 3
Severe oedema (raised >1 mm and extending beyond area of exposure): 4
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- other: 24, 48, 72 h
- Score:
- 0.06
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #4
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #5
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- other: 24, 48, 72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- edema score
- Basis:
- animal #4
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- edema score
- Basis:
- animal #5
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- edema score
- Basis:
- animal #6
- Time point:
- other: 24, 48, 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- other: 0 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 24 h
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- other: 1 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 24 h
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- other: 1 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- other: 24 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- other: only 3 foci affected
- Other effects:
- There were no signs of toxicity or ill health in any rabbit during the observation period.
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information
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