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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records
Reference
Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1966
Reliability:
2 (reliable with restrictions)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Principles of method if other than guideline:
Miller, L.C., and Tainter, M.L.: Proc.Soc. Exper.Biol. Med., 57:261.1944
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes
Species:
rat
Strain:
other: albino carworth
Sex:
male
Route of administration:
oral: gavage
Vehicle:
propylene glycol
Remarks:
also corn oil
Control animals:
yes
Sex:
male
Dose descriptor:
LD50
Effect level:
ca. 290 mg/kg bw
Based on:
dissolved
Remarks on result:
other: Dose of coumarin(10% in Propylene Glycol)
Sex:
male
Dose descriptor:
LD50
Effect level:
ca. 520 mg/kg bw
Based on:
dissolved
Remarks on result:
other: Dose of coumarin(6% in corn oil)

Acute toxicity in fasted male albino rats following single oral doses of coumarin in propylene

glycol or corn oil

Rat Groups

(10 rats/group 90 grams average body wt)

Dose of Coumarin(10% in Propylene

Glycol)

%Mortality (at 72hr)

Dose of Coumarin(10% in corn oil)

%Mortality

(at 72hr)

 

gm./kgm

0.10

0.20

0.30

0.50

0.70

1.00

1.50

 

0.0

0.0

60.0

100.0

100.0

100.0

100.0

gm./kgm

0.25

0.30

0.50

0.60

0.70

0.80

1.00

 

0.0

10.0

40.0

60.0

90.0

70.0

100.0

LD50±SD1…..

Slope Factor2….

 

0.29±0.03gm/kgm

0.16 gm./kgm

 

0.52±0.03 gm/kgm

0.31 gm./kgm

Interpretation of results:
harmful
Remarks:
Migrated information
Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Dose descriptor:
LD50
Value:
520 mg/kg bw
Quality of whole database:
reliable because all data come from RIFM database.

Additional information

Justification for selection of acute toxicity – oral endpoint
oral.002 provided more information.

Justification for classification or non-classification