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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Study period:
1941
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable publication which meets basic scientific principles.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1951

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
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Dichloroacetic acid
EC Number:
201-207-0
EC Name:
Dichloroacetic acid
Cas Number:
79-43-6
Molecular formula:
C2H2Cl2O2
IUPAC Name:
2,2-dichloroacetic acid
Test material form:
not specified

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS

- Fasting period before study: None of our earlier papers have pointed out that, except in rare cases, all single oral doses are given in this laboratory to animals which have not been fasted overnight. In the few instances where we have made comparisons, the LD50 determined on fasted rats is lower than that on animals not fasted by only some 20 or 30%, a difference on the borderline of statistical significance and not great enough to influence evaluation of practical hazards.

Administration / exposure

Route of administration:
oral: unspecified
Control animals:
not specified

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
2 820 mg/kg bw

Applicant's summary and conclusion

Conclusions:
The oral LD50 in rats was 2820 mg /kg bw.
Executive summary:

The oral LD50 in rats was 2820 mg /kg bw.