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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Skin irritation / corrosion

Currently viewing:

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:
other: OECD-Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl-1H-benzotriazole
EC Number:
249-596-6
EC Name:
Methyl-1H-benzotriazole
Cas Number:
29385-43-1
Molecular formula:
C7H7N3
IUPAC Name:
5-methyl-1H-1,2,3-benzotriazole
Test material form:
not specified
Details on test material:
- Name of test material (as cited in study report): Preventol C/7-100
- Physical state: solid

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Hacking & Churchill ltd. Huntingdon, UK
- Housing: single cage
- Diet Ssniff K 4 ad libitum
- Water ad libitum

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 - 25 °C
- Humidity (%): 40 - 60 °C
- Photoperiod (hrs dark / hrs light): 12

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg pasted with water
Duration of treatment / exposure:
4 hours
Observation period:
1 h, 24 h, 48 h, 72 h, 7 d
Number of animals:
3
Details on study design:
TEST SITE
- Area of exposure: 2.5 cm*2.5 cm
- Type of wrap if used: cellulose and elastic, adhesive bandage

REMOVAL OF TEST SUBSTANCE
- Washing : with water
- Time after start of exposure: 4hours

SCORING SYSTEM: Draize

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
edema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 1h
Score:
ca. 0.33
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 1 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
no indication of irritation
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
7 d
Score:
0
Max. score:
4
Reversibility:
fully reversible
Remarks on result:
no indication of irritation

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The test item did not show any signs of skin irritation