Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1973
Report date:
1973

Materials and methods

Principles of method if other than guideline:
no information available
GLP compliance:
no
Remarks:
Study conducted prior to implementation of GLP

Test material

Constituent 1
Chemical structure
Reference substance name:
3-hydroxy-2-methylquinoline-4-carboxylic acid
EC Number:
204-198-1
EC Name:
3-hydroxy-2-methylquinoline-4-carboxylic acid
Cas Number:
117-57-7
Molecular formula:
C11H9NO3
IUPAC Name:
3-hydroxy-2-methylquinoline-4-carboxylic acid

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified

Administration / exposure

Type of coverage:
not specified
Vehicle:
water
Details on dermal exposure:
TEST MATERIAL
- Concentration: 50% (aqueous grinding)
Control animals:
not specified

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 2 500 mg/kg bw
Based on:
act. ingr.
Mortality:
none
Clinical signs:
none
Gross pathology:
none

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The dermal LD50 of 3-hydroxy-2-methylquinoline-4-carboxylic acid in rats was > 2500 mg/kg bw.
Executive summary:

In an acute toxicity study, rats were given a single dose of 50% 3-hydroxy-2-methylquinoline-4-carboxylic acid (aqueous grinding) at a dose of 2500 mg/kg bw and were observed for 14 days.

During the observation period, no death occurred and no clinical or gross pathological signs were observed.

Dermal LD50 (rats) > 2500 mg/kg bw