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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
June 1975
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1975
Report date:
1975

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: Code of Federal Regulations, Title 16, Section 1500.41 (US)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[[4-[(2-cyano-3-nitrophenyl)azo]-m-tolyl](2-acetoxyethyl)amino]ethyl acetate
EC Number:
250-061-4
EC Name:
2-[[4-[(2-cyano-3-nitrophenyl)azo]-m-tolyl](2-acetoxyethyl)amino]ethyl acetate
Cas Number:
30124-94-8
Molecular formula:
C21H21N5O6
IUPAC Name:
2-[[4-[(2-cyano-3-nitrophenyl)azo]-m-tolyl](2-acetoxyethyl)amino]ethyl acetate
Test material form:
solid: granular

Test animals

Species:
rabbit
Strain:
not specified

Test system

Type of coverage:
occlusive
Preparation of test site:
clipped
Vehicle:
water
Controls:
yes, concurrent no treatment
Amount / concentration applied:
0.5 g mixed with water to a paste
Duration of treatment / exposure:
24 h
Observation period:
72 h
Number of animals:
6
Details on study design:
TEST SITE
- Area of exposure: 1 x 1 inch
- Type of wrap if used: gauze, rubberised cloth

REMOVAL OF TEST SUBSTANCE
- Time after start of exposure: 24 h

OBSERVATION TIME POINTS
24 & 72 h

SCORING SYSTEM:
- Method of calculation: Draize system

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: not irritating
Remarks on result:
no indication of irritation
Other effects:
none

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test item did not induce any signs of irritation on rabbit skin at 24/48/72 h. Therefore, the substance is classifiable as irritant according to the CLP Regulation.