CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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RC8960080
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CHEMICAL NAME :
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19-Nor-17-alpha-pregna-4,9,11-trien-20-yn-3-one, 17-hydroxy-
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CAS REGISTRY NUMBER :
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848-21-5
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LAST UPDATED :
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199706
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DATA ITEMS CITED :
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3
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MOLECULAR FORMULA :
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C20-H22-O2
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MOLECULAR WEIGHT :
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294.42
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Implant
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DOSE :
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1168 ug/kg
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SEX/DURATION :
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female 52 week(s) pre-mating
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TOXIC EFFECTS :
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Reproductive - Maternal Effects - menstrual cycle changes or disorders Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
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REFERENCE :
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CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 18,411,1978
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Implant
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DOSE :
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1642 ug/kg
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SEX/DURATION :
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female 52 week(s) pre-mating
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TOXIC EFFECTS :
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Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
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REFERENCE :
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CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 18,429,1978
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Intravaginal
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DOSE :
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1 mg/kg
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SEX/DURATION :
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female 36 week(s) pre-mating
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TOXIC EFFECTS :
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Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)
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REFERENCE :
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CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 20,511,1979
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