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Diss Factsheets

Toxicological information

Toxicity to reproduction

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Administrative data

Endpoint:
screening for reproductive / developmental toxicity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
Data is from peer reviewed publication

Data source

Reference
Reference Type:
publication
Title:
Cycloalkanones. 7.' Hypocholesterolemic Activity of Aliphatic Compounds Related to 2,8-Dibenzylcyclooctanone
Author:
G. L. Carlson,* I. H. Hall, and C. Piantadosi
Year:
1975
Bibliographic source:
Journal of Medicinal Chemistry, Vol. 18, No. 10 pp 1024-1026

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: No data
Principles of method if other than guideline:
To evaluate the reproductive toxicity of 2-Octanone in female Sprague-Dawley Rats by Uterotropic Activity
GLP compliance:
not specified
Limit test:
no

Test material

Constituent 1
Reference substance name:
2-Octanone
IUPAC Name:
2-Octanone
Constituent 2
Chemical structure
Reference substance name:
Octan-2-one
EC Number:
203-837-1
EC Name:
Octan-2-one
Cas Number:
111-13-7
Molecular formula:
C8H16O
IUPAC Name:
octan-2-one
Test material form:
other: Colourless liquid
Details on test material:
- Name of test material:Octan-2-one
- Molecular formula: C8H16O
- Molecular weight: 128.21 g/mol
- Substance type: Organic
- Physical state:Liquid
Specific details on test material used for the study:
- Name of test material: 2-octanone
- IUPAC name: octan-2-one
- Molecular formula: C8H16O
- Molecular weight: 128.2134 g/mol
- Substance type: Organic
- Physical state: Liquid
- Impurities (identity and concentrations): No data available

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Zivic Miller, Allison Park, Pa.
- Age at study initiation: No data available.
- Fasting period before study: No data available.
- Housing: No data available.
- Diet (e.g. ad libitum): Purina lab chow ad libitum
- Water (e.g. ad libitum): water ad libitum

Administration / exposure

Route of administration:
oral: gavage
Type of inhalation exposure (if applicable):
not specified
Vehicle:
CMC (carboxymethyl cellulose)
Details on exposure:
DOSAGE PREPARATION (if unusual): Test compound was suspended in 1% carboxymethylcellulose- H20 (1% CMC) and homogenized

VEHICLE
- Concentration in vehicle:10 mg/kg
- Amount of vehicle (if gavage): No data
- Justification for choice of vehicle: 1% carboxymethylcellulose- H20 (1% CMC)
- Lot/batch no. (if required):
- Purity:
Details on mating procedure:
No data available
Analytical verification of doses or concentrations:
not specified
Duration of treatment / exposure:
3 days
Frequency of treatment:
Daily
Details on study schedule:
A fertility test was conducted on Ovariectomized female Sprague-Dawley Rats by Uterotropic Activity for 3 days, The dose were administrated by oral gavage.
Doses / concentrations
Dose / conc.:
10 mg/kg diet
No. of animals per sex per dose:
Total no of animals-42 females
0 mg/kg/day-21 female rats
10 mg/kg/day-8 female rats
10 µg /k (positive contro)-13 female rats
Control animals:
yes, concurrent vehicle
Positive control:
17-Ethinylestradiol

Examinations

Parental animals: Observations and examinations:
Clinical sign and Body weight was observed daily.
Oestrous cyclicity (parental animals):
No data available
Sperm parameters (parental animals):
No data available
Litter observations:
No data available
Postmortem examinations (parental animals):
The necropsy was performed after 3 days. The uterus was removed, trimmed, and weighed.
Postmortem examinations (offspring):
No data available
Statistics:
yes, Student's t test and standard deviation were measured.
Reproductive indices:
No data available
Offspring viability indices:
No data available

Results and discussion

Results: P0 (first parental generation)

General toxicity (P0)

Clinical signs:
no effects observed
Dermal irritation (if dermal study):
not specified
Mortality:
not specified
Body weight and weight changes:
no effects observed
Food consumption and compound intake (if feeding study):
not specified
Food efficiency:
not specified
Water consumption and compound intake (if drinking water study):
not specified
Ophthalmological findings:
not specified
Haematological findings:
not specified
Clinical biochemistry findings:
not specified
Urinalysis findings:
not specified
Behaviour (functional findings):
not specified
Immunological findings:
not specified
Organ weight findings including organ / body weight ratios:
no effects observed
Histopathological findings: non-neoplastic:
not specified
Histopathological findings: neoplastic:
not specified
Other effects:
not specified

Reproductive function / performance (P0)

Reproductive function: oestrous cycle:
not specified
Reproductive function: sperm measures:
not specified
Reproductive performance:
no effects observed
Description (incidence and severity):
No uterotropic activities and change in uterus weight were observed in treated rats as compare to control

Details on results (P0)

Organ weight- No significant change was observed at dose level 10 mg/kg/day in treated group compare to control.
No uterotropic activities and change in uterus weight were observed in treated rats as compare to control

Effect levels (P0)

Key result
Dose descriptor:
NOAEL
Effect level:
10 mg/kg bw/day
Based on:
test mat.
Sex:
female
Basis for effect level:
organ weights and organ / body weight ratios
reproductive performance
Remarks on result:
other: not specified

Target system / organ toxicity (P0)

Critical effects observed:
not specified
System:
other: not specified
Organ:
not specified

Results: P1 (second parental generation)

General toxicity (P1)

Clinical signs:
not specified
Dermal irritation (if dermal study):
not specified
Mortality:
not specified
Body weight and weight changes:
not specified
Food consumption and compound intake (if feeding study):
not specified
Food efficiency:
not specified
Water consumption and compound intake (if drinking water study):
not specified
Ophthalmological findings:
not specified
Haematological findings:
not specified
Clinical biochemistry findings:
not specified
Urinalysis findings:
not specified
Behaviour (functional findings):
not specified
Immunological findings:
not specified
Organ weight findings including organ / body weight ratios:
not specified
Gross pathological findings:
not specified
Neuropathological findings:
not specified
Histopathological findings: non-neoplastic:
not specified
Histopathological findings: neoplastic:
not specified
Other effects:
not specified

Reproductive function / performance (P1)

Reproductive function: oestrous cycle:
not specified
Reproductive function: sperm measures:
not specified
Reproductive performance:
not specified

Effect levels (P1)

Dose descriptor:
other: not specified
Based on:
not specified
Sex:
not specified
Basis for effect level:
other: not specified
Remarks on result:
other: not specified

Target system / organ toxicity (P1)

Critical effects observed:
not specified
System:
other: not specified
Organ:
not specified

Results: F1 generation

General toxicity (F1)

Clinical signs:
not specified
Dermal irritation (if dermal study):
not specified
Mortality / viability:
not specified
Body weight and weight changes:
not specified
Food consumption and compound intake (if feeding study):
not specified
Food efficiency:
not specified
Water consumption and compound intake (if drinking water study):
not specified
Ophthalmological findings:
not specified
Haematological findings:
not specified
Clinical biochemistry findings:
not specified
Urinalysis findings:
not specified
Sexual maturation:
not specified
Organ weight findings including organ / body weight ratios:
not specified
Gross pathological findings:
not specified
Histopathological findings:
not specified
Other effects:
not specified

Developmental neurotoxicity (F1)

Behaviour (functional findings):
not specified

Developmental immunotoxicity (F1)

Developmental immunotoxicity:
not specified

Effect levels (F1)

Dose descriptor:
other: not specified
Generation:
other: not specified
Based on:
not specified
Sex:
not specified
Basis for effect level:
other: not specified
Remarks on result:
other: not specified

Target system / organ toxicity (F1)

Critical effects observed:
not specified
System:
other: not specified
Organ:
not specified

Results: F2 generation

General toxicity (F2)

Clinical signs:
not specified
Dermal irritation (if dermal study):
not specified
Mortality / viability:
not specified
Body weight and weight changes:
not specified
Food consumption and compound intake (if feeding study):
not specified
Food efficiency:
not specified
Water consumption and compound intake (if drinking water study):
not specified
Ophthalmological findings:
not specified
Haematological findings:
not specified
Clinical biochemistry findings:
not specified
Urinalysis findings:
not specified
Sexual maturation:
not specified
Organ weight findings including organ / body weight ratios:
not specified
Gross pathological findings:
not specified
Histopathological findings:
not specified
Other effects:
not specified

Developmental neurotoxicity (F2)

Behaviour (functional findings):
not specified

Developmental immunotoxicity (F2)

Developmental immunotoxicity:
not specified

Effect levels (F2)

Dose descriptor:
other: not specified
Based on:
not specified
Sex:
not specified
Basis for effect level:
other: not specified
Remarks on result:
other: not specified

Target system / organ toxicity (F2)

Critical effects observed:
not specified
System:
other: not specified
Organ:
not specified

Overall reproductive toxicity

Reproductive effects observed:
no
Treatment related:
not specified

Applicant's summary and conclusion

Conclusions:
NOAEL was considered to be 10 mg/kg bw /day for P generation when Sprague-Dawley female rat were treated with octan-2-one daily for 3 days.
Executive summary:

In an uterotropic activity study,Sprague-Dawley female rat were treated with octan-2-one in the concentration of 10 mg/kg in 1% carboxymethylcellulose- H20 (1% CMC) and homogenized and administrated orally by gavage dailyfor days which were ovariectomized before dosing. No toxic clinical sign and change in body weight were observed in treated female rats at 10 mg/kg as compared to control. In addition, no uterotropic activities and change in uterus weight were observed in treated rats as compare to control. Therefore, NOAEL was considered to be 10 mg/kg bw /day for P generation when Sprague-Dawley female rat were treated with octan-2-one daily for 3 days.