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ethisterone cas no:434-03-7

Synonyms: Ethisterone,98%; 17-alpha-ethynyltestosterone; pregneninolone; 17a-ethynyl-17b-hydroxy-4-androsten-3-one; 17a-ethynyl testosterone; anhydrohydroxyprogesterone; ethynyl testosterone; Gestoral

Identification
Nameethisterone
CAS434-03-7
SynonymsEthisterone,98%; 17-alpha-ethynyltestosterone; pregneninolone; 17a-ethynyl-17b-hydroxy-4-androsten-3-one; 17a-ethynyl testosterone; anhydrohydroxyprogesterone; ethynyl testosterone; Gestoral
EINECS(EC#)207-096-5
Molecular FormulaC21H28O2
Molecular Weight312.45
Chemical Properties
AppearanceOff-white powder
refractive index33 ° (C=1, Pyridine)
storage tempKeep tightly closed. Store in a cool dry place.
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass6.1
Safety Data

Hazard Xn:Harmful
Risk R40;R48
Safety Hazard Codes:Xn
Risk Statements:40-48
40:Limited evidence of a carcinogenic effect
48:Danger of serious damage to health by prolonged exposure
Safety Statements:22-24/25
22:Do not breathe dust
24/25:Avoid contact with skin and eyes
RIDADR:UN 2811
WGK Germany:3

Toxicity

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TU5570250
CHEMICAL NAME :
17-alpha-Pregn-4-en-20-yn-3-one, 17-hydroxy-
CAS REGISTRY NUMBER :
434-03-7
BEILSTEIN REFERENCE NO. :
1889895
LAST UPDATED :
199612
DATA ITEMS CITED :
17
MOLECULAR FORMULA :
C21-H28-O2
MOLECULAR WEIGHT :
312.49
WISWESSER LINE NOTATION :
L E5 B666 OV MUTJ A1 E1 FQ F1UU1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
168 mg/kg
SEX/DURATION :
female 3 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - menstrual cycle changes or disorders
REFERENCE :
AJOGAH American Journal of Obstetrics and Gynecology. (C.V. Mosby Co., 11830 Westline Industrial Dr., St. Louis, MO 63146) V.1- 1920- Volume(issue)/page/year: 76,626,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
386 mg/kg
SEX/DURATION :
female 6-28 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
AJOGAH American Journal of Obstetrics and Gynecology. (C.V. Mosby Co., 11830 Westline Industrial Dr., St. Louis, MO 63146) V.1- 1920- Volume(issue)/page/year: 84,962,1962
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
21 mg/kg
SEX/DURATION :
female 11-15 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
JCEMAZ Journal of Clinical Endocrinology and Metabolism. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.12- 1952- Volume(issue)/page/year: 19,1369,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
81900 ug/kg
SEX/DURATION :
female 16-28 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
JCEMAZ Journal of Clinical Endocrinology and Metabolism. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.12- 1952- Volume(issue)/page/year: 19,1369,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
79800 ug/kg
SEX/DURATION :
female 8-26 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
JCEMAZ Journal of Clinical Endocrinology and Metabolism. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.12- 1952- Volume(issue)/page/year: 18,559,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
56 mg/kg
SEX/DURATION :
female 15-39 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
JCEMAZ Journal of Clinical Endocrinology and Metabolism. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.12- 1952- Volume(issue)/page/year: 18,559,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Unreported
DOSE :
56 mg/kg
SEX/DURATION :
female 15-39 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
JCEMAZ Journal of Clinical Endocrinology and Metabolism. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.12- 1952- Volume(issue)/page/year: 18,559,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Unreported
DOSE :
92 mg/kg
SEX/DURATION :
female 7-39 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
FESTAS Fertility and Sterility. (American Fertility Soc., 608 13th Ave. S, Birmingham, AL 35282) V.1- 1950- Volume(issue)/page/year: 11,148,1960
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
200 mg/kg
SEX/DURATION :
female 17-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
ECJPAE Endocrinologia Japonica. (Japan Pub. Trading Co., Ltd., POB 5030, Tokyo International, Tokyo, Japan) V.1- 1954- Volume(issue)/page/year: 24,77,1977
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
10 mg/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - mating performance (e.g. # sperm positive females per # females mated; # copulations per # estrus cycles)
REFERENCE :
FESTAS Fertility and Sterility. (American Fertility Soc., 608 13th Ave. S, Birmingham, AL 35282) V.1- 1950- Volume(issue)/page/year: 5,282,1954
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
288 mg/kg
SEX/DURATION :
male 9 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
REFERENCE :
PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 100,540,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
10 mg/kg
SEX/DURATION :
male 10 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
REFERENCE :
PSEBAA Proceedings of the Society for Experimental Biology and Medicine. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1903/04- Volume(issue)/page/year: 100,540,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
280 mg/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 5,57,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
140 mg/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - ovaries, fallopian tubes
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 5,57,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
5 mg/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
ACEDAB Acta Endocrinologica, Supplementum (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) No.1- 1948- Volume(issue)/page/year: 28,18,1956 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80411 No. of Facilities: 68 (estimated) No. of Industries: 1 No. of Occupations: 6 No. of Employees: 2770 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80411 No. of Facilities: 21 (estimated) No. of Industries: 1 No. of Occupations: 5 No. of Employees: 4354 (estimated) No. of Female Employees: 729 (estimated)

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