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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1986
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study, GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986
Report date:
1986

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
3-hydroxy-2'-methyl-2-naphthanilide
EC Number:
205-205-0
EC Name:
3-hydroxy-2'-methyl-2-naphthanilide
Cas Number:
135-61-5
Molecular formula:
C18H15NO2
IUPAC Name:
3-hydroxy-N-(2-methylphenyl)naphthalene-2-carboxamide
Constituent 2
Reference substance name:
Naphtol AS-D
IUPAC Name:
Naphtol AS-D

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Interfauna UK
- Age at study initiation: 3-5 months
- Weight at study initiation: 2.8 - 3.1 kg
- Housing: single
- Diet: ad libitum
- Water : 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:
500 mg / 0,4 ml vehicle per animal
Duration of treatment / exposure:
4h
Observation period:
72 h
Number of animals:
3

Results and discussion

In vivo

Results
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
other: 1 h
Score:
1
Max. score:
1
Reversibility:
fully reversible
Remarks on result:
other: Animals 2 & 3 did not show effects at all
Other effects:
none reported

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
Naphtol AS D was not irritating on the skin of rabbits.