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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: other routes
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP non-guideline study, available as unpublished report, limitations in design and/or reporting but otherwise adequate for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1973
Report date:
1973

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
BASF internal method: Several groups of mice per sex and dose were injected in the peritoneal cavity with preparations of the test substance in CMC. Mice were necropised after the observation period of 7 days.
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,5-dimethylhexyne-2,5-diol
EC Number:
205-533-4
EC Name:
2,5-dimethylhexyne-2,5-diol
Cas Number:
142-30-3
Molecular formula:
C8H14O2
IUPAC Name:
2,5-dimethylhex-3-yne-2,5-diol
Details on test material:
- Name of test material (as cited in study report): Dimethylhexindiol

Test animals

Species:
mouse
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
CMC (carboxymethyl cellulose)
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
ca. 2 800 mg/kg bw
Based on:
test mat.
Clinical signs:
Dyspnea, staggering, tonic and clonic convulsions, twitching, tremors, lying on the stomach and in the lateral position, apathy, poor general health, and a yellower urine than usual were observed.
Gross pathology:
No intra-abdominal substance residues were observed.

Applicant's summary and conclusion