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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Well documented study report, acceptable for assessment with restrictions (solid substance tested undiluted without moistering, no individual irritation scores given)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1977
Report date:
1977

Materials and methods

Principles of method if other than guideline:
Patch test according to the method described in § 1500.41 in the Federal Register 38, No. 187, 27 Sep 1973, page 27019 (Draize test).
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-nitroaniline
EC Number:
201-855-4
EC Name:
2-nitroaniline
Cas Number:
88-74-4
Molecular formula:
C6H6N2O2
IUPAC Name:
2-nitroaniline
Details on test material:
- Name of test material (as cited in study report): Echtorange GR Base = 2-nitro-1-aminobenzol
- Analytical purity: 98.5-99.5% base

Test animals

Species:
rabbit
Strain:
Himalayan
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Strain: SPF-Albino-Himalayan rabbits, Hoe:HIMK (SPFWiga)
- Weight at study initiation: 1.5 - 2.0 kg
- Housing: 1/cage
- Diet (ad libitum): Erka 8300 (Robert Koch oHG/Hamm, Germany)
- Water (ad libitum): tap water

Test system

Type of coverage:
occlusive
Preparation of test site:
other: shaved, abraded and non-abraded
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg

Duration of treatment / exposure:
24 hours
Observation period:
72 hours
Number of animals:
6
Details on study design:
TEST SITE
- Area of exposure: 2.5 x 2.5 cm
- Type of wrap if used: the test substance was applied to a gauze patch that was applied to the skin by means of adhesive tape, covered by PVC foil

REMOVAL OF TEST SUBSTANCE
- Washing (if done): no data

SCORING SYSTEM: Draize scoring system (Federal Register§ 1500.41 in the Federal Register 38, No. 187, 27 Sep 1973, page 27019)

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: 24-48-72 hrs
Score:
0
Max. score:
8
Reversibility:
other: no skin irritation

Applicant's summary and conclusion

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