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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Effects on fertility

Link to relevant study records
Reference
Endpoint:
two-generation reproductive toxicity
Remarks:
based on test type (migrated information)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data from peer reviewed journal
Qualifier:
according to guideline
Guideline:
other:
Principles of method if other than guideline:
Details of guidelines not mentioned in publication. Estrogenic activity was estimated in Sprague–Dawley rats
GLP compliance:
not specified
Limit test:
no
Species:
rat
Strain:
Sprague-Dawley
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Texas A&M University
Department of Comparative Medicine
- Age at study initiation: Adult female rats
Fasting period before study: No data available
- Housing: in controlled conditions
Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: No data available

ENVIRONMENTAL CONDITIONS
- Temperature (°C):23°C
- Humidity (%):No data available
- Air changes (per hr): No data available
- Photoperiod (hrs dark / hrs light): lights on, 06:00 h, lights off, 18:00 h
Route of administration:
oral: gavage
Vehicle:
corn oil
Details on mating procedure:
No data
Analytical verification of doses or concentrations:
not specified
Duration of treatment / exposure:
10 Days i.e. on PND 22 and continuing until vaginal opening (VO) occurred
Frequency of treatment:
Daily
Details on study schedule:
No data available
Remarks:
Doses / Concentrations:
1.0, 5.0, or 10.0 mg/kg/day
Basis:
nominal in diet
No. of animals per sex per dose:
Animals were randomly assigned to treatment groups
Parental animals: Observations and examinations:
Parental animals observation and examinations
CAGE SIDE OBSERVATIONS: Yes
BODY WEIGHT: Yes
Time schedule for examinations: daily
Oestrous cyclicity (parental animals):
No Data
Sperm parameters (parental animals):
No Data
Litter observations:
No Data
Postmortem examinations (parental animals):
No Data
Postmortem examinations (offspring):
No Data
Statistics:
No Data
Reproductive indices:
No Data
Offspring viability indices:
No Data
Clinical signs:
not specified
Body weight and weight changes:
not specified
Food consumption and compound intake (if feeding study):
not specified
Organ weight findings including organ / body weight ratios:
effects observed, treatment-related
Histopathological findings: non-neoplastic:
effects observed, treatment-related
Other effects:
not specified
Reproductive function: oestrous cycle:
not specified
Reproductive function: sperm measures:
not specified
Reproductive performance:
not specified
Body weight and weight changes:
effects observed, treatment-related
Description (incidence and severity):
No effect on body weight gain
Sexual maturation:
effects observed, treatment-related
Description (incidence and severity):
No differences was observed from control, as all animals the smear on the day of VO was either proestrus or estrus.
On pups animals, vaginal lavage was performed daily and cytology was observed until first diestrus (D1) indicating sexual maturity
Dose descriptor:
NOAEL
Generation:
F1
Effect level:
10 mg/kg bw/day (nominal)
Based on:
test mat.
Sex:
female
Basis for effect level:
other: Estrous cycle
Reproductive effects observed:
not specified

Reproductive function: estrous cycle: No differences was observed from control, as all animals the smear on the day of VO was either proestrus or estrus.

Conclusions:
In a repeated dose toxicity study conducted in female Sprague Dawley Rats, the reprotoxicity test was performed on the pups of the rats at different concentrations. Adult female rats were bred and allowed to deliver pups normally and pups were administered chemical on PND 22 and continuing until vaginal opening (VO) occurred (about 10 days). After that no difference was found between treated and control animals as all had the smear on the day of VO was either proestrus or estrus.
Executive summary:

In a repeated dose toxicity study conducted in female Sprague Dawley Rats, the reprotoxicity test was performed on the pups of the rats at different concentrations. Adult female rats were bred and allowed to deliver pups normally and pups were administered chemical on PND 22 and continuing until vaginal opening (VO) occurred (about 10 days). After that no difference was found between treated and control animals as all had the smear on the day of VO was either proestrus or estrus.

Effect on fertility: via oral route
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
NOAEL
10 mg/kg bw/day
Study duration:
subacute
Quality of whole database:
The data is K2 level as the data has been obtained from the experimental study published in peer reviewed journal.
Effect on fertility: via inhalation route
Endpoint conclusion:
no study available
Effect on fertility: via dermal route
Endpoint conclusion:
no study available
Additional information

In a repeated dose toxicity study conducted in female Sprague Dawley Rats, the reprotoxicity test was performed on the pups of the rats at different concentrations. Adult female rats were bred and allowed to deliver pups normally and pups were administered chemical on PND 22 and continuing until vaginal opening (VO) occurred (about 10 days). After that no difference was found between treated and control animals as all had the smear on the day of VO was either proestrus or estrus.


Justification for selection of Effect on fertility via oral route:
In a repeated dose toxicity study conducted in female Sprague Dawley Rats, the reprotoxicity test was performed on the pups of the rats at different concentrations. Adult female rats were bred and allowed to deliver pups normally and pups were administered chemical on PND 22 and continuing until vaginal opening (VO) occurred (about 10 days). After that no difference was found between treated and control animals as all had the smear on the day of VO was either proestrus or estrus.

Justification for classification or non-classification

Additional information