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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Nov 2103 - March 2104
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

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)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
7-cyclopentyl-N,N-dimethyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide
EC Number:
807-111-0
Cas Number:
1211441-98-3
Molecular formula:
C23H30N8O
IUPAC Name:
7-cyclopentyl-N,N-dimethyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide
Test material form:
solid: bulk

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
Albino rabbit, New Zealand White, (SPF-Quality).

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
water
Controls:
no
Amount / concentration applied:
Each animal was treated by dermal application of 0.5 grams of the test substance. The test substance was moistened with 0.6 mL of the vehicle and applied to the skin of one flank, using a metalline patch# of 2x3 cm.
Duration of treatment / exposure:
4 h
Observation period:
The skin reactions were assessed at approximately 1, 24, 48 and 72 hours after the removal of the dressings and test substance.
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
overall irritation score
Basis:
animal #1
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No skin irritation
Remarks on result:
no indication of irritation
Irritation parameter:
overall irritation score
Basis:
animal #2
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No skin irritation
Remarks on result:
no indication of irritation
Irritation parameter:
overall irritation score
Basis:
animal #3
Time point:
24/48/72 h
Score:
ca. 0
Max. score:
0
Reversibility:
other: No skin irritation
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Remarks on result:
no indication of irritation
Irritant / corrosive response data:
There was no evidence of a corrosive effect on the skin.
Other effects:
No staining of the treated skin by the test substance was observed and no test substance remnants were seen.

Any other information on results incl. tables

No skin irritation was caused by 4 hours exposure to LEE011-A4.

There was no evidence of a corrosive effect on the skin.

No staining of the treated skin by the test substance was observed and no test substance remnants were seen.

No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred.

Applicant's summary and conclusion

Interpretation of results:
other: No skin irritation was caused by 4 hours exposure to LEE011-A4..
Conclusions:
Based on the results LEE011-A4 does not have to be classified and has no obligatory labelling requirement for skin irritation