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Registration Dossier
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EC number: 238-883-1 | CAS number: 14814-09-6
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:
- 1990/05/01
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- detailed summary report
- Justification for type of information:
- Read across based on close structural similarity between 3-(triethoxysilyl)propanethiol and the read-across substance 3-(trimethoxysilyl)propane-1-thiol, only difference being a triethoxy versus a trimethoxy group
Cross-reference
- Reason / purpose for cross-reference:
- read-across source
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- not specified
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 3-trimethoxysilylpropane-1-thiol
- EC Number:
- 224-588-5
- EC Name:
- 3-trimethoxysilylpropane-1-thiol
- Cas Number:
- 4420-74-0
- Molecular formula:
- C6H16O3SSi
- IUPAC Name:
- 3-(Trimethoxysilyl)propane-1-thiol
- Test material form:
- liquid
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Not specified
- Age at study initiation: Not specified
- Weight at study initiation: 2-3 kg
- Housing: Not specified
- Diet: Commercial diet, ad libitum
- Water: Municipal water, ad libitum
- Acclimation period: Not specified
ENVIRONMENTAL CONDITIONS
- Temperature (°C): Not specified
- Humidity (%): Not specified
- Air changes (per hr): Not specified
- Photoperiod (hrs dark / hrs light): Not specified
Test system
- Type of coverage:
- occlusive
- Preparation of test site:
- clipped
- Remarks:
- intact skin
- Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 ml - Duration of treatment / exposure:
- 4 hours
- Observation period:
- 14 days
- Number of animals:
- 3M, 3F
- Details on study design:
- TEST SITE
- Area of exposure: Not specified
- % coverage: Not specified
- Type of wrap if used: Occlusive, impervious sheeting
REMOVAL OF TEST SUBSTANCE
- Washing (if done): Excess test item removed
- Time after start of exposure: 4 hours
SCORING SYSTEM: Draize
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #5
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #5
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #6
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- No erythema or oedema was observed in any animal at any time point.
- Other effects:
- None reported
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- In the key skin irritation study conducted in a manner equivalent or similar to OECD Test Guideline 404 (GLP not specified, reliability score 2), read-across substance 3-(trimethoxysilyl)propanethiol was not irritating to the skin of New Zealand white rabbits.
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