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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20.08.2007 - 17.10.2007
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-dimethyl 2-[2-(2-amino-6-chloro-9H-purin-9-yl)ethyl]propanedioate
Cas Number:
172529-93-0
Molecular formula:
C12 H14 Cl N5 O4
IUPAC Name:
1,3-dimethyl 2-[2-(2-amino-6-chloro-9H-purin-9-yl)ethyl]propanedioate
Constituent 2
Reference substance name:
2-Amino-6-chloro-9-(methyl-2-carbomethoxybutanoate-4- yl)purine
IUPAC Name:
2-Amino-6-chloro-9-(methyl-2-carbomethoxybutanoate-4- yl)purine
Details on test material:
Formula: C12H14ClN5O4.
Appearence: White to pale yellow solid.
Expiry date: 31 December 2007.

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Remarks:
The test substance was moistened with deionised water.
Controls:
no
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Observation period:
1, 24, 48 and 72 hours after patch removal.
Number of animals:
3 females

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Max. score:
0
Remarks on result:
other: Max. duration: 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:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Max. score:
0
Remarks on result:
other: Max. duration: d; Max. value at end of observation period: 0 (related to all animals)
Other effects:
No signs of systemic toxicity were observed.

Any other information on results incl. tables

Erythema/Eschars: Not affected at any observation point.

Oedema: Not affected at any observation point.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
According to REGULATION (EC) No 1272/2008 (CLP) "Fam-stage-1" does not require classification for skin irritation.