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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
5 September to 17 September, 2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2003

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2500 (Acute Dermal Irritation)
Version / remarks:
EPA 712-C-98-196
GLP compliance:
yes
Remarks:
OECD ENV/MC/CHEM(98017 and EC Directive 1999/11/EC

Test material

Constituent 1
Chemical structure
Reference substance name:
ethyl 1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridine-3-carboxylate
EC Number:
700-890-7
Cas Number:
503614-91-3
Molecular formula:
C27 H28 N4 O5
IUPAC Name:
ethyl 1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phenyl]-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridine-3-carboxylate
Details on test material:
Powder

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan UK Ltd, Bicester, Oxon, England
- Age at study initiation: at least 8 weeks
- Weight at study initiation: 2.74kg to 3.00kg
- Housing: Individually in stainless steel cages with perforated floors.
- Diet: 125 gram of standard laboratory rabbit diet (STANRAB [P] SQC pellet) per day
- Water: ad libitum
- Acclimation period: at least 26 days.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 15 to 23°C
- Humidity (%): 40% to 70%
- Photoperiod (hrs dark / hrs light): 12 hrs of artificial light in each 24 hr period

Test system

Type of coverage:
semiocclusive
Preparation of test site:
clipped
Vehicle:
unchanged (no vehicle)
Controls:
other: additional site similarly treated with the exception of the test substance.
Amount / concentration applied:
500 mg applied to a site pre-wetted with reverse osmosis water
Duration of treatment / exposure:
4hr
Observation period:
on removal of the dressing and at 1hr, 24hr, 48hr and 72hr after the dressing was removed
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Conclusions:
No dermal reaction was observed in any animal throughout the duration of the study.

The test material does not labeling per GHS or EU CLP.

Executive summary:

There were no signs of toxicity or ill health in any rabbits during the observation period.

No dermal reaction was observed in any animal throughout the duration of the study