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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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)
Rationale for reliability incl. deficiencies:
other: Well documented GLP study.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
no
Principles of method if other than guideline:
EPA Guideline 81-1
GLP compliance:
yes
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
1,18-octadecanedioic acid
EC Number:
442-490-2
EC Name:
1,18-octadecanedioic acid
Cas Number:
871-70-5
Molecular formula:
C18H34O4
IUPAC Name:
octadecanedioic acid
Constituent 2
Reference substance name:
Octadecanedioic acid
EC Number:
617-978-5
IUPAC Name:
Octadecanedioic acid
Test material form:
solid: flakes
Details on test material:
Purity: 100% active matter
Remarks: White, solid.
Solubility: Poorly soluble (=< 2 mg/L in test medium).
Carbon chain length distribution: C16 2,98%, C18 92,9%, C18:1 1,04%

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
corn oil
Doses:
5 g/kg
No. of animals per sex per dose:
5
Control animals:
not specified

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw

Applicant's summary and conclusion

Interpretation of results:
practically nontoxic
Remarks:
Migrated information Criteria used for interpretation of results: expert judgment
Conclusions:
The rat LD50 for octadecadioic acid was > 5 g/kg. Due to low mortality and single dose level, confidence levels were not calculated. No specific targeorgan was identified.