Registration Dossier
Registration Dossier
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EC number: 217-940-4 | CAS number: 2014-83-7
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 986
- Report date:
- 1986
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2,6-dichlorobenzyl chloride
- EC Number:
- 217-940-4
- EC Name:
- 2,6-dichlorobenzyl chloride
- Cas Number:
- 2014-83-7
- Molecular formula:
- C7H5Cl3
- IUPAC Name:
- 2,6-dichlorobenzyl chloride
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- - Source: Hoechst AG
- Number of animals: 3 per duration of application
- Age: 3 - 5 months
- Weight: 2.1 - 3.2 kg
- Keeping: Single cages, fully air-conditioned, 20 +- 3 °C, 50 +- 20 % rh, 12 h light per day
- Feed: Altromin 22123 ad libitum, 15 g hay per day, water ad libitum
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Amount / concentration applied:
- 0,5 ml per animal
- Duration of treatment / exposure:
- 4 hours or 3 minutes
- Observation period:
- 30 - 60 minutes, 24, 48, 72 hours after removal. Signs were visible after 72 hours, so additional rating after 7 and 14 days.
- Number of animals:
- 3 per application time
- Details on study design:
- TEST SITE
- Area of exposure: 2.5 x2.5 cm² (6.25 cm²)
- Type of wrap if used: pulp, additionally covered with semiocclusive tape
REMOVAL OF TEST SUBSTANCE
- Washing (if done): tap water
- Time after start of exposure: 3 min / 4 h
SCORING SYSTEM: according to OECD TG 404
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- edema score
- Remarks:
- 4 hour application
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 2.3
- Max. score:
- 4
- Reversibility:
- fully reversible within: 7 d
- Irritation parameter:
- edema score
- Remarks:
- 4 hour application
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 14 d
- Irritation parameter:
- edema score
- Remarks:
- 4 hour application
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 14 d
- Irritation parameter:
- erythema score
- Remarks:
- 4 hour application
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 2.7
- Max. score:
- 4
- Reversibility:
- fully reversible within: 14 d
- Irritation parameter:
- erythema score
- Remarks:
- 4 hour application
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- not reversible
- Irritation parameter:
- erythema score
- Remarks:
- 4 hour application
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- not reversible
- Irritant / corrosive response data:
- White skin after 24, 48, 72 hours, whole flank reddened after 24 hours, hardened skin (2/3), cracked skin (3/3), bulged skin (2/3), scab formation (1/3) after 7 days, dry skin (1/3), parchmenty skin, scar formation, scab formation, shedding in one animal each after 14 days.
Applicant's summary and conclusion
- Interpretation of results:
- Category 1C (corrosive) based on GHS criteria
- Conclusions:
- According to test results corrosive to skin.
- Executive summary:
2,6-dichlorobenzyl chloride was tested for skin irritating or skin corrosive properties according to OECD 404. Following this protocol 500 mg of the test substance were applied to the shaved skin of 6 New Zealands White rabbits. After 3 minutes or 4 h exposure time the semiocclusive patch was removed. Residual test substance was removed with lukewarm tap water. Animals were examined for signs of skin irritation and/or corrosion at 30-60 min, 24, 48, and 72 h after patch removal.
Based on the findings in this test the test substance is skin corrosing.
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