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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP status unknown, near guideline study, available as unpublished report, restrictions in design and/or reporting but otherwise adequate for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Cyclohexane
EC Number:
203-806-2
EC Name:
Cyclohexane
Cas Number:
110-82-7
Molecular formula:
C6H12
IUPAC Name:
cyclohexane
Details on test material:
No details reported

Test animals

Species:
rabbit
Strain:
not specified
Sex:
male/female
Details on test animals or test system and environmental conditions:
No details reported

Administration / exposure

Type of coverage:
not specified
Vehicle:
not specified
Duration of exposure:
Not reported
Doses:
2000 mg/kg
No. of animals per sex per dose:
3
Control animals:
no
Details on study design:
Animals were observed 1, 2 and 4 hours on the day of application and daily thereafter for a further 14 days.

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Remarks on result:
other: no mortalities
Mortality:
No mortalities.
Clinical signs:
other: All rabbits vocalised as test substance applied. No other clinical observations observed.
Gross pathology:
No abnormalities.
Other findings:
Dermal irritation: Erythema on day 1 ranged from very slight in 2 males to well-defined in 1 female. On day 3 erythema was very slight in 2 males and 2 females but had cleared by day 7. Oedema on day 1 ranged from very slight in 1 male and 3 females to slight in 1 male but had cleared by day 3. Scaling was present in 1 female on day 10.

Applicant's summary and conclusion

Interpretation of results:
practically nontoxic
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Acute dermal LD50 of cyclohexane to male and female rabbits was in excess of 2000 mg/kg bodyweight.
Executive summary:

Acute dermal LD50 of cyclohexane to male and female rabbits was in excess of 2000 mg/kg bodyweight.