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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well-documented, non-guideline and non-GLP study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1965
Report date:
1965

Materials and methods

Principles of method if other than guideline:
according to BASF-internal standard
GLP compliance:
no
Test type:
acute toxic class method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl ether-boron trifluoride
EC Number:
206-532-1
EC Name:
Dimethyl ether-boron trifluoride
Cas Number:
353-42-4
Molecular formula:
C2H6BF3O
IUPAC Name:
(dimethyloxo)trifluoro-λ⁵-borane
Details on test material:
- Name of test material (as cited in study report): Borfluorid-Methylaetherat
- Physical state: liquid

Test animals

Species:
rat
Strain:
other: US rats
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
The test substance was given as 0.5% aqueous solution (25 mm3), 2% aqueous solution (200 mm3) and 4% solution (higher doses).
Doses:
25, 200, 250, 320, 400, 500, 640, 800 mm3
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 resp. 14 days
- Necropsy of survivors performed: yes

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
approximate LD50
Effect level:
ca. 496 mg/kg bw
Remarks on result:
other: original value: ca. 400 mm3/kg
Mortality:
25, 200, 250 mm3: 0/10 after 7 days
320 mm3: 3/10 after 14 days
400 mm3: 6/10 after 7 days
500 mm3: 7/10 after 14 days
640 mm3: 9/10 after 14 days
800 mm3: 10/10 after 24 hours
Clinical signs:
other: Apathy, ventral or lateral position, convulsions, dyspnoea.
Gross pathology:
Dilated stomach

Applicant's summary and conclusion