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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Study period:
Mar to Apr 1992
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: only shortly reported but basic data given, comparable to Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
3,3-Ethylenedioxy-17 alpha-hydroxy-5-androstene-17 beta-carbonitrile
EC Number:
617-449-9
Cas Number:
83196-58-1
Molecular formula:
C22 H31 N O3
IUPAC Name:
3,3-Ethylenedioxy-17 alpha-hydroxy-5-androstene-17 beta-carbonitrile
Details on test material:
- Name of test material (as cited in study report): ZK 74.857
- Batch No.: 26025160

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: physiol. saline + Myrj 53
Doses:
2000 mg/kg
No. of animals per sex per dose:
3
Control animals:
no

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.

Any other information on results incl. tables

No mortalities occurred. Moreover, no compound-related findings were observed in neither clinical observation nor body weight gain nor autopsy.

Applicant's summary and conclusion

Executive summary:

The single oral administration of the test substance (ZK 74.857) to male and female rats at a dose of 2000 mg/kg was tolerated without any mortality or compound-related clinical or macroscopic pathological signs. The acute oral toxicity of AD-Cyanhydrin-3 -Ethyleneketal in rats is therefore above 2000 mg/kg body weight.