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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: oral

Currently viewing:

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1964

Materials and methods

Principles of method if other than guideline:
Acute oral toxicity "Farbenfabrik Bayer AG"
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Cyclododecanone
EC Number:
212-595-6
EC Name:
Cyclododecanone
Cas Number:
830-13-7
Molecular formula:
C12H22O
IUPAC Name:
cyclododecanone
Details on test material:
Cyclododecanone of Hüls AG as produced in 1964, "chemically pure"

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
no further information

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: acetone + vegetable oil (1:10)
Details on oral exposure:
ADMINISTRATION: 
- Doses per time period: single dose (gavage)
- Volume administered or concentration: 5 ml/kg bw
Doses:
1000; 2000; 2500 mg/kg bw
No. of animals per sex per dose:
10
Control animals:
no
Details on study design:
- Post dose observation period: 7 days
Statistics:
no statistical analysis was performed

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 2 500 mg/kg bw
Mortality:
MORTALITY: no deaths at any dose
Clinical signs:
CLINICAL SIGNS:    no animal of 1000 mg/kg bw group  
all animals of 2000 and 2500 mg/kg bw groups: labored respiration,  spasticity and impairment of general condition, beginning 1-3 hours after  
treatment and fading within 2 days
Body weight:
no data
Gross pathology:
no data
Other findings:
no data

Any other information on results incl. tables

DOSE  [mg/kg bw]    MORTALITY/CLINICAL SIGNS/ANIMALS PER DO

------------------------------------------------------------------------

1000                         0/0/10

2000                          0/10/10

2500                          0/10/10

Applicant's summary and conclusion

Conclusions:
Based on the results of the study the substance cyclododecanone showed low acute oral toxicity in rats.
Executive summary:

An oral acute toxicity test was conducted with cyclododecanone in rats. The LD50 is greater than 2500 mg/kg bw. Based on the results of the study the substance cyclododecanone showed low acute oral toxicity in rats.