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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Reference substance name:
Docosanoic acid
EC Number:
204-010-8
EC Name:
Docosanoic acid
Cas Number:
112-85-6
IUPAC Name:
docosanoic acid

Test animals

Species:
rat
Strain:
Crj: CD(SD)
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
corn oil
Doses:
0 (control), 2000 mg/L
No. of animals per sex per dose:
5 animals per sex and per dose.
Control animals:
yes
Details on study design:
- Duration of observation period following administration: 14 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, gross pathology

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
No deaths occurred of either males or females in the treated groups.
Clinical signs:
No effects were found on general condition.
Body weight:
No effects were found on body weight changes.
Gross pathology:
No effects were found on autopsy findings.

Applicant's summary and conclusion

Interpretation of results:
other: Not classified (CLP Regulation EC no. 1272/2008)
Conclusions:
The LD50 of docosanoic acid in rats after a single oral dose was >2000 mg/kg bw.
Executive summary:

An acute oral toxicity test was performed on docosanoic acid according to OECD Guideline 401. 5 rats per sex and per dose were exposed to 0 (control) and 2000 mg/kg bw test item by a single gavage route. No deaths occurred of either males or females in the treated groups. No effects were found on general condition, body weight changes or autopsy findings. The LD50 was determined to be >2000 mg/kg bw both for males and females.