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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1988
Report date:
1988

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:
4-nitro-o-anisidine
EC Number:
202-588-6
EC Name:
4-nitro-o-anisidine
Cas Number:
97-52-9
Molecular formula:
C7H8N2O3
IUPAC Name:
2-methoxy-4-nitroaniline
Constituent 2
Reference substance name:
PNOA
IUPAC Name:
PNOA

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Hoechst AG
- Age at study initiation: 3-5 months
- Weight at study initiation: 2,4 - 3.5 kg
- Housing: single animal
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 +/- 3
- Humidity (%): 50 +/- 20
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
other: PEG 400
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg per animal
- Concentration (if solution): 500mg / 0.25 ml PEG 400


VEHICLE
- Amount(s) applied (volume or weight with unit): 0.25 ml
Duration of treatment / exposure:
4 h
Observation period:
72 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
mean
Time point:
other: 72 h
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible within: 72 h
Remarks on result:
other: 1 animal only showed effects
Irritation parameter:
edema score
Basis:
mean
Time point:
other: 72 h
Score:
ca. 0
Max. score:
0
Reversibility:
fully reversible within: 48 h
Other effects:
none

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Classification: not irritating