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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
July 21, 2016 to November 9, 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Reference substance 001
Cas Number:
1078712-76-1
Molecular formula:
C23-27H49-59N (Substance is a UVCB)
Test material form:
liquid

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
0.5 ml
Duration of treatment / exposure:
4 hours
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
24/48/72 h
Score:
1.33
Reversibility:
not fully reversible within: 14 days
Remarks on result:
positive indication of irritation
Irritation parameter:
edema score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 4 days
Score:
2.33
Irritation parameter:
erythema score
Basis:
mean
Time point:
7 d
Score:
2
Irritation parameter:
erythema score
Basis:
mean
Time point:
14 d
Score:
1

Applicant's summary and conclusion

Interpretation of results:
Category 2 (irritant) based on GHS criteria
Conclusions:
The substance is classified a category 2 skin irritant as all 3 animals had erythema that persisted through the 14 day observation period. In addition, the erythema increased after the 72H observation period.