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19-Norpregn-4-en-3-one,17-hydroxy-, (17a)- cas no:52-78-8

Synonyms: 19-Nor-17a-pregn-4-en-3-one, 17-hydroxy-(8CI); 19-Norandrost-4-en-3-one, 17a-ethyl-17-hydroxy- (6CI); 17-ENT; 17-Ethyl-19-nortestosterone; 17a-Ethyl-17-hydroxy-13b-methylgon-4-en-3-one; 17a-Ethyl-17-hydroxy-19-nor-4-androsten-3-one;17a-Ethyl-17-hydroxy-4-estren-3-one;17a-Ethyl-17-hydroxy-4-norandrosten-3-one;17a-Ethyl-17b-hydroxy-19-norandrost-4-en-3-one;17a-Ethyl-17b-hydroxyestr-4-en-3-one; 17a-Ethyl-19-nortestosterone; 17a-Ethylnortestosterone; 17b-Hydroxy-17a-ethylestr-4-en-3-one;19-Nortestosterone, 17-ethyl-; CB 8022; NSC 70581; NSC 9893; Nileva; Nilevar;Norethandrolone; Pronabol; SC 5914; Solevar; U 6817

Identification
Name19-Norpregn-4-en-3-one,17-hydroxy-, (17a)-
CAS52-78-8
Synonyms19-Nor-17a-pregn-4-en-3-one, 17-hydroxy-(8CI); 19-Norandrost-4-en-3-one, 17a-ethyl-17-hydroxy- (6CI); 17-ENT; 17-Ethyl-19-nortestosterone; 17a-Ethyl-17-hydroxy-13b-methylgon-4-en-3-one; 17a-Ethyl-17-hydroxy-19-nor-4-androsten-3-one;17a-Ethyl-17-hydroxy-4-estren-3-one;17a-Ethyl-17-hydroxy-4-norandrosten-3-one;17a-Ethyl-17b-hydroxy-19-norandrost-4-en-3-one;17a-Ethyl-17b-hydroxyestr-4-en-3-one; 17a-Ethyl-19-nortestosterone; 17a-Ethylnortestosterone; 17b-Hydroxy-17a-ethylestr-4-en-3-one;19-Nortestosterone, 17-ethyl-; CB 8022; NSC 70581; NSC 9893; Nileva; Nilevar;Norethandrolone; Pronabol; SC 5914; Solevar; U 6817
EINECS(EC#)200-153-5
Molecular FormulaC20H30 O2
Molecular Weight302.50
Chemical Properties
refractive index1.555
Safety Data

Safety

Human male reproductive effects by ingestion: impotence, changes in spermatogenesis, testes, epididymis and sperm duct. Human female reproductive effects by ingestion: changes in menstrual cycle and fertility. An experimental teratogen. Other reproductive effects in experimental animals. A steroid. When heated to decomposition it emits acrid smoke and fumes.


Toxicity

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RC8961200
CHEMICAL NAME :
19-Nor-17-alpha-pregn-4-en-3-one, 17-hydroxy-
CAS REGISTRY NUMBER :
52-78-8
LAST UPDATED :
199606
DATA ITEMS CITED :
27
MOLECULAR FORMULA :
C20-H30-O2
MOLECULAR WEIGHT :
302.50
WISWESSER LINE NOTATION :
L E5 B666 OV MUTJ E1 FQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
24 mg/kg
SEX/DURATION :
male 56 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)
REFERENCE :
ANYAA9 Annals of the New York Academy of Sciences. (New York Academy of Sciences, 2 E. 63rd St., New York, NY 10021) V.1- 1877- Volume(issue)/page/year: 71,649,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
9 mg/kg
SEX/DURATION :
male 21 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - impotence
REFERENCE :
ANYAA9 Annals of the New York Academy of Sciences. (New York Academy of Sciences, 2 E. 63rd St., New York, NY 10021) V.1- 1877- Volume(issue)/page/year: 71,649,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
174 mg/kg
SEX/DURATION :
male 58 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)
REFERENCE :
RPHRA6 Recent Progress In Hormone Research. Proceedings of the Laurentian Hormone Conference. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1947- Volume(issue)/page/year: 20,545,1964
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
64 mg/kg
SEX/DURATION :
female 64 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
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: 75,82,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
24 mg/kg
SEX/DURATION :
male 56 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - impotence
REFERENCE :
FEPRA7 Federation Proceedings, Federation of American Societies for Experimental Biology. (Bethesda, MD) V.1-46, 1942-87. Volume(issue)/page/year: 18,1057,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
12 mg/kg
SEX/DURATION :
male 28 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)
REFERENCE :
FEPRA7 Federation Proceedings, Federation of American Societies for Experimental Biology. (Bethesda, MD) V.1-46, 1942-87. Volume(issue)/page/year: 18,1057,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
4200 ug/kg
SEX/DURATION :
female 21 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
SCIEAS Science. (American Assoc. for the Advancement of Science, 1333 H St., NW, Washington, DC 20005) V.1- 1895- Volume(issue)/page/year: 124,891,1956
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
13 mg/kg
SEX/DURATION :
female 21 day(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 :
20 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 :
28 mg/kg
SEX/DURATION :
male 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
REFERENCE :
ANYAA9 Annals of the New York Academy of Sciences. (New York Academy of Sciences, 2 E. 63rd St., New York, NY 10021) V.1- 1877- Volume(issue)/page/year: 71,500,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
112 mg/kg
SEX/DURATION :
male 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
ANYAA9 Annals of the New York Academy of Sciences. (New York Academy of Sciences, 2 E. 63rd St., New York, NY 10021) V.1- 1877- Volume(issue)/page/year: 71,500,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
100 mg/kg
SEX/DURATION :
female 4 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
ENDOAO Endocrinology (Baltimore). (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21203) V.1- 1917- Volume(issue)/page/year: 59,695,1956
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
15750 ug/kg
SEX/DURATION :
male 21 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - other effects on male
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: 119,340,1965
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
200 ug/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: 22,439,1975
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
3500 ug/kg
SEX/DURATION :
female 35 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
ENDOAO Endocrinology (Baltimore). (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21203) V.1- 1917- Volume(issue)/page/year: 63,561,1958
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
60 mg/kg
SEX/DURATION :
male 30 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands
REFERENCE :
AAMMAU Archives d'Anatomie Microscopique et de Morphologie Experimentale. (SPPIF, B.P.22, F-41353 Vineuil, France) V.36-76, 1947-1987. For publisher information, see BSTME2. Volume(issue)/page/year: 48,199,1959
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
1400 ug/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - ovaries, fallopian tubes 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: 5,489,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
14 mg/kg
SEX/DURATION :
female 14 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 5,489,1972
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Unreported
DOSE :
150 mg/kg
SEX/DURATION :
female 30 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
RPHRA6 Recent Progress In Hormone Research. Proceedings of the Laurentian Hormone Conference. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1947- Volume(issue)/page/year: 20,395,1964
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1600 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
85GRAA "The Control of Fertility," Pincus, G., New York, Academic Press, 1965 Volume(issue)/page/year: -,150,1965
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
320 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
85GRAA "The Control of Fertility," Pincus, G., New York, Academic Press, 1965 Volume(issue)/page/year: -,150,1965
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1500 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
85GRAA "The Control of Fertility," Pincus, G., New York, Academic Press, 1965 Volume(issue)/page/year: -,57,1965
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
2500 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
13OPAL "Control of Ovulation, Proceedings of the Conference, Dedham, MA, 1960," Villee, C.A., ed., Oxford, UK, Pergamon Press Ltd., 1961 Volume(issue)/page/year: -,37,1961
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
200 ug/kg
SEX/DURATION :
female 5 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
ANREAK Anatomical Record. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1906/08- Volume(issue)/page/year: 142,469,1962
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
100 ug/kg
SEX/DURATION :
female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
13OPAL "Control of Ovulation, Proceedings of the Conference, Dedham, MA, 1960," Villee, C.A., ed., Oxford, UK, Pergamon Press Ltd., 1961 Volume(issue)/page/year: -,37,1961
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
168 mg/kg
SEX/DURATION :
female 42 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - menstrual cycle changes or disorders Reproductive - Fertility - other measures of fertility
REFERENCE :
JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot, POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960- Volume(issue)/page/year: 12,489,1966

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