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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1 (reliable without restriction)

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1969

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Principles of method if other than guideline:
No description of the guideline available
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2-methylcyclohexanone
EC Number:
209-513-6
EC Name:
2-methylcyclohexanone
Cas Number:
583-60-8
Molecular formula:
C7H12O
IUPAC Name:
2-methylcyclohexan-1-one
Test material form:
liquid
Details on test material:
As received, undiluted, the sample was observed to be a free-flowing
clear liquid.

Test animals

Species:
rat

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
>= 1 370 - <= 2 868 mg/kg bw
Based on:
test mat.
Remarks on result:
other: calculated value considering LD50 value reported in mL/Kg, converted to mg/Kg by considering density
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
>= 1.48 - <= 3.1 mL/kg bw
Based on:
test mat.
Remarks on result:
other: value as reported in the study

Applicant's summary and conclusion

Interpretation of results:
Category 4 based on GHS criteria
Conclusions:
The 2-methylcyclohexanone and the source cyclohexanone show similar single oral toxicity in rats, with a slight lesser toxic dose for the target compound 2-methylcyclohexanone (Smyth et al., 1969):
• 2-methylcyclohexanone LD50: 2.14 (1.48-3.10) ml/kg