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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Nov to Dec 2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well reported Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guideline
Qualifier:
according 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
Reference substance name:
17 beta-Hydroxy-17 alpha-(3-hydroxy-1-propynyl)-4-androsten-3-one
IUPAC Name:
17 beta-Hydroxy-17 alpha-(3-hydroxy-1-propynyl)-4-androsten-3-one
Details on test material:
- Name of test material (as cited in study report): ZK 4829
- Batch No.: 59002501

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
other: physiol. saline + Myrj 53 in bidest.water
Doses:
2000 mg/kg (application volume 10 mL/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 animal died in the course of the study and no clinical signs were observed.

One male and one female showed significantly reduced body weight gain.

No abnormalities were observed at necropsy.

Applicant's summary and conclusion

Executive summary:

The single oral administration of the test substance (ZK 4829) to male and female rats at a dose of 2000 mg/kg was tolerated without any mortality. No compound-related clinical signs were observed and there were no macroscopic pathological signs. One male and one female animal showed significantly reduced body weight gain.

The acute oral toxicity of Hydroxypropinol in rats is therefore above 2000 mg/kg body weight.