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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted on the structural analogue amides, C18(unsatd.), N,N-bis(hydroxyethyl) according to standard scientific principles.
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1976

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
In the acute oral toxicity study, groups of adult SD rats were given the single calculated dose by stomach intubation and placed in screen bottom cages for a two week observation period and determination of lethal dose.
GLP compliance:
not specified
Test type:
other: No data provided
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N-bis(2-hydroxyethyl)oleamide
EC Number:
202-281-7
EC Name:
N,N-bis(2-hydroxyethyl)oleamide
Cas Number:
93-83-4
Molecular formula:
C22H43NO3
IUPAC Name:
N,N-bis(2-hydroxyethyl)octadec-9-enamide
Constituent 2
Reference substance name:
Amides, C18(unsatd.), N,N-bis(hydroxyethyl)
IUPAC Name:
Amides, C18(unsatd.), N,N-bis(hydroxyethyl)
Details on test material:
- Name of test material (as cited in study report): Varamide A-7

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: male: 150-250 g
- Fasting period before study: 24 h
- Housing: Screen bottom cages
- Diet (e.g. ad libitum): Laboratory chow (ad libitum)
- Water (e.g. ad libitum): ad libitum

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
not specified
Details on oral exposure:
Six adult SD rats per dose group were given the test substance by stomach intubation.
Doses:
5,000, 10,000 and 20,000 mg/kg.
No. of animals per sex per dose:
Males: 6/dose/group
Control animals:
not specified
Details on study design:
Male SD rats were fasted for 24 h and then administered single doses of the test substance by stomach intubation followed by 14 d of observation period.
Statistics:
No data

Results and discussion

Effect levels
Sex:
male
Dose descriptor:
LD50
Effect level:
10 000 mg/kg bw
Based on:
test mat.
Mortality:
Number of dead/number dosed:
- No mortality occured at lowest dose of 5,000 mg/kg, i.e., 0/6
- 50% mortality was observed In the mid dose group of 10,000 mg/kg, i.e., 3/6
- Almost all animals died in the highest dose group of 20,000 mg/kg, i.e., 5/6.

Any other information on results incl. tables

None

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The oral LD50 of the test substance in SD rats was found to be 10,000 mg/kg bw. Hence, it can be considered to be not classified as per EU CLP classification system.
Executive summary:

A study was conducted to determine the acute oral toxicity of the test substance amides, C18 -unsatd., N,N-bis(hydroxyethyl) in SD rats. Under the study conditions, the oral LD50 was determined to be 10,000 mg/kg bw and does not meet the requirement for classification according to according to EC criteria (67/548/EEC) and according to CLP criteria (EC 1272/2008).