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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1960
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP with limited details of the study, however, considered sufficient for classification

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Studies on the Toxicity of Triethylhorane (TEB)
Author:
Rinehart, W.
Year:
1960
Bibliographic source:
American Industrial Hygiene Association Journal (1958-1999), (1960) Vol. 5, pp. 389-93
Report date:
1960
Reference Type:
publication
Title:
Toxicology of Boron Compounds
Author:
Levinskas, G.
Year:
1964
Bibliographic source:
"Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964
Report date:
1964

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Deviations:
not specified
GLP compliance:
no
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
Triethylborane
EC Number:
202-620-9
EC Name:
Triethylborane
Cas Number:
97-94-9
Molecular formula:
C6H15B
IUPAC Name:
triethylborane
Test material form:
other: liquid
Details on test material:
8.9% (w/w) solution of TEB in Nujol (77.9 mg TEB/ml solutin, density 0.872 gm/ml).

Test animals

Species:
rat
Strain:
not specified
Sex:
male
Details on test animals or test system and environmental conditions:
None provided

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: Nujol (mineral oil)
Details on oral exposure:
Test article was administered by stomach tube and observed for 7 days.
Doses:
The assay of the solution was based on boron contest as determined by the method of Hill (Rinehart, 1960).

10 animals were dosed with 50 mg TEB kg. Five animals each were dose with 159, 200, 252, 317 or 468 mg TEB/kg.
No. of animals per sex per dose:
See above
Details on study design:
No additional information provided
Statistics:
The LD50 was calculated by the method of Weil.

Results and discussion

Effect levels
Sex:
male
Dose descriptor:
LD50
Effect level:
235 mg/kg bw
Remarks on result:
other: no further information
Mortality:
There were 0/10, 0/5, 0/5, 4/5, 5/5 and 5/5 for the 50, 159, 200, 252, 317 or 468 mg TEB/kg dose groups, respectively. Death occurred within 2-24 hours.
Clinical signs:
other: Anorexia and lassitude (all animals) and tremors and convulsions in animals that died.
Gross pathology:
No data

Applicant's summary and conclusion

Interpretation of results:
Category 3 based on GHS criteria
Remarks:
Criteria used for interpretation of results: EU
Conclusions:
The acute oral LD50 (rats) was 235 mg TEB/kg.
Executive summary:

The acute oral LD50 (rats) was 235 mg TEB/kg.