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Diss Factsheets

Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Remarks:
Read across data
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Justification for type of information:
Data was taken from secondary source

Data source

Reference
Reference Type:
other: Secondary source
Title:
SIDS Initial Assessment Report For SIAM 17
Author:
OECD-SIAM
Year:
2003
Bibliographic source:
OECD SIDS, SIAM, 2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Version / remarks:
1976
Principles of method if other than guideline:
Acute skin irritation in vivo study was carried out for the given test chemical using rabbit species of both sex for determing the erythma and edema score
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3-aminopropyltriethoxysilane
EC Number:
213-048-4
EC Name:
3-aminopropyltriethoxysilane
Cas Number:
919-30-2
Molecular formula:
C9H23NO3Si
IUPAC Name:
3-AMINOPROPYLTRIETHOXYSILANE
Test material form:
liquid
Specific details on test material used for the study:
Not specified

Test animals

Species:
rabbit
Strain:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Dow Corning Corporation
- Age at study initiation:No data available
- Weight at study initiation: No data available
- Housing: No data available
- Diet (e.g. ad libitum): No data available
- Water (e.g. ad libitum):No data available
- Acclimation period:No data available

ENVIRONMENTAL CONDITIONS
- Temperature (°C): No data available
- Humidity (%): No data available
- Air changes (per hr): No data available
- Photoperiod (hrs dark / hrs light):No data available

IN-LIFE DATES: From: To:No data available

Test system

Type of coverage:
not specified
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
Undilutated
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5ml
Duration of treatment / exposure:
4 hrs
Observation period:
14days
Number of animals:
4 animals
Details on study design:
Not specified

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
edema score
Basis:
mean
Remarks:
all 4 animals
Time point:
other: 24 hrs and 72 hrs
Score:
6.5
Max. score:
11
Reversibility:
not specified
Irritation parameter:
erythema score
Basis:
mean
Remarks:
4 animals
Time point:
other: 24 hrs and 72 hrs
Score:
6.5
Max. score:
11
Reversibility:
not specified
Irritant / corrosive response data:
Moderate to severe erythema with edema was observed on all animals after 24 hours exposure to the test material.After 72 hours, irritation became more pronounced on the abraded skin, leading to the formation of eschars
Other effects:
Not specified

Applicant's summary and conclusion

Interpretation of results:
Category 1 (corrosive) based on GHS criteria
Conclusions:
An unfailing study, like OECD 404, found that test material was corrosive when in contact for 4 h in rabbits, the erthyma and edema score was found to be 6.5
Executive summary:

An unfailing study, like OECD "Acute Dermal Irritation/Corrosion" was performed for the RA chemical 3-aminopropyltriethoxysilane(CAS 919-30-2)using rabbits. The RA chemical was applied to all the animals at a dose of 0.5ml and observed for 72  hrs. After 24 hrs applications of a test sample to rabbit skin resulted in Moderate to severe erythema with edema observed on all animals. After 72 hours, irritation became more pronounced on the abraded skin, leading to the formation of eschars. The Primary Irritation Index was calculated to be 6.5. Hence the test material may classified as  irritant to the skin of rabbits