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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Secondary citation. In the OECD SIDS on 2-Naphthol (2002) a similar reliability was assigned.

Data source

Reference
Reference Type:
review article or handbook
Title:
Industrial Bio-Test Laboratories, Inc., Data Sheets 26-4/1973.
Author:
Industrial Bio-Test Laboratories
Year:
1973
Bibliographic source:
As cited in: Berufsgenossenschaft der chemischen Industrie (1995): Toxikologische Bewertung. Beta-Naphthol. Nr. 135, Heidelberg and as cited in: The Registry of Toxic Effects of Chemical Substances (RTECS). 2-Naphthol.

Materials and methods

Principles of method if other than guideline:
no data
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-naphthol
EC Number:
205-182-7
EC Name:
2-naphthol
Cas Number:
135-19-3
Molecular formula:
C10H8O
IUPAC Name:
2-naphthol

Test animals

Species:
rabbit
Strain:
not specified

Test system

Type of coverage:
not specified
Preparation of test site:
not specified
Vehicle:
not specified
Controls:
not specified
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
24 hours
Observation period:
Readings were made after 24 and 72 hours for erythema and edema.
Number of animals:
6

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
primary dermal irritation index (PDII)
Basis:
mean
Score:
1.29
Reversibility:
no data
Remarks on result:
other: The overall score (intact AND abraded skin) was given out of a scale of 8.0
Irritation parameter:
erythema score
Score:
1.17
Remarks on result:
other: On abraded skin, erythema was still present after 72 hours

Any other information on results incl. tables

Erythema, but no edema was noted. On abraded skin, erythema was still present after 72 hours (score 1.17). The overall score (intact AND abraded skin) was given as 1.29 out of a scale of 8.0.

Applicant's summary and conclusion

Conclusions:
The result is described as "mild effects" in RTECS.

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