Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2001
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
437-930-5
EC Name:
-
Cas Number:
51553-03-8
Molecular formula:
Hill formula: C22H23N7O5 CAS formula: C22H23N7O5
IUPAC Name:
N-{5-[bis(2-methoxyethyl)amino]-2-[2-(2,6-dicyano-4-nitrophenyl)diazen-1-yl]phenyl}acetamide
Test material form:
solid: particulate/powder

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Vehicle:
other: moistened with water
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Max. score:
0
Remarks on result:
other: Max. duration: 0 d; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
edema score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Max. score:
0
Remarks on result:
other: Max. duration: 0 d; Max. value at end of observation period: 0 (related to all animals)
Other effects:
Gelb-blaue oder blaue Anfärbung der behandelten Haut durch
die Testsubstanz wurde während den ersten 24 Stunden
beobachtet. Diese Anfärbung hatte aber keinen Einfluss auf
die Bewertung der Hautreaktion.

Yellow-blue or blue staining of the treated skin by the
test substance was observed within the first 24 hours,
which did not hamper the scoring of the skin reactions.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The substance does not have to be classified for skin irritation.