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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1978

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl 2-hexyl-3-oxocyclopentanecarboxylate
EC Number:
253-379-1
EC Name:
Methyl 2-hexyl-3-oxocyclopentanecarboxylate
Cas Number:
37172-53-5
Molecular formula:
C13H22O3
IUPAC Name:
methyl 2-hexyl-3-oxocyclopentane-1-carboxylate
Test material form:
liquid
Specific details on test material used for the study:
- Description: Clear liquid

Test animals

Species:
rat
Strain:
Wistar
Sex:
male
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 200 - 300g
- Fasting period before study: 18 hours
- Housing: 5/cage in wire mesh cages in a temperature controlled room
- Diet: Fresh Purina Rat Chow, ad libitum
- Water: Tap water, ad libitum
- Acclimation period: at least one week

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
not specified
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
10
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Examinations performed: mortality and signs of toxicity at 3-4 hours after dosing and daily for 14 days. All rats were examined for gross pathology.

Results and discussion

Effect levels
Key result
Sex:
male
Dose descriptor:
discriminating dose
Effect level:
5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality observed
Clinical signs:
other: Lethargy was observed in 2 animals on day 0. Chromorhinorrhea was noted in 1 animal on day 9.
Gross pathology:
One animal had a dark liver and a pale kidney. One animal had red and yellow areas on intestines and a dark kidney.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met