Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1977
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Short report, available, early study, non GLP

Data source

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

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
yes
Remarks:
6 animals used
GLP compliance:
no
Remarks:
pre dates GLP

Test material

Constituent 1
Reference substance name:
Naphtol AS-PH
IUPAC Name:
Naphtol AS-PH
Constituent 2
Chemical structure
Reference substance name:
2'-ethoxy-3-hydroxy-2-naphthanilide
EC Number:
202-185-5
EC Name:
2'-ethoxy-3-hydroxy-2-naphthanilide
Cas Number:
92-74-0
Molecular formula:
C19H17NO3
IUPAC Name:
N-(2-ethoxyphenyl)-3-hydroxynaphthalene-2-carboxamide

Test animals / tissue source

Species:
rabbit
Strain:
Himalayan

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
100 mg
Duration of treatment / exposure:
24 h
Observation period (in vivo):
72 h
Number of animals or in vitro replicates:
6

Results and discussion

In vivo

Results
Irritation parameter:
maximum mean total score (MMTS)
Basis:
mean
Time point:
other: 7 h
Score:
ca. 20
Reversibility:
not specified

Applicant's summary and conclusion

Interpretation of results:
slightly irritating
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
Naphtol AS PH was slightly irritant in the rabbit eye.