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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Repeated dose toxicity: dermal

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Administrative data

Endpoint:
chronic toxicity: dermal
Remarks:
combined repeated dose and carcinogenicity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
review article or handbook
Title:
No information
Author:
HSDB
Year:
2003
Bibliographic source:
HSDB (Hazardous Substances Data Bank), a database of the National Library of Medicine's TOXNET system

Materials and methods

Test guideline
Guideline:
OECD Guideline 453 (Combined Chronic Toxicity / Carcinogenicity Studies)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Coumarin
EC Number:
202-086-7
EC Name:
Coumarin
Cas Number:
91-64-5
Molecular formula:
C9H6O2
IUPAC Name:
2H-chromen-2-one

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female

Administration / exposure

Duration of treatment / exposure:
104 weeks (male); 110 weeks (female)

Results and discussion

Effect levels

open allclose all
Key result
Dose descriptor:
NOEL
Effect level:
42 mg/kg bw/day
Based on:
test mat.
Sex:
male
Basis for effect level:
other: 104 weeks
Key result
Dose descriptor:
NOEL
Effect level:
50 mg/kg bw/day
Based on:
test mat.
Sex:
female
Basis for effect level:
other: 110 weeks

Target system / organ toxicity

Critical effects observed:
not specified

Applicant's summary and conclusion