*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : RC8945400 CHEMICAL NAME : 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17-alpha)-, mixt. with (17-alpha)- 19-norpregn-4-en-20-yn-17-ol CAS REGISTRY NUMBER : 8064-76-4 LAST UPDATED : 198910 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C20-H28-O.C20-H24-O2 MOLECULAR WEIGHT : 580.92 COMPOUND DESCRIPTOR : Tumorigen Drug Reproductive Effector Human SYNONYMS/TRADE NAMES : * Ba 49249 * C 49249Ba * Ethynylestradiol-lynestrenol mixt. * Ethinyloestradiol mixt. with lynoestrenol * Fisioquens * Fysioquens * Lynoestrenol mixt. with ethinyloestradiol * Minilyn * Ovostat * Ovostat 1375 * Ovostat E * Yermonil *** HEALTH HAZARD DATA *** ** TUMORIGENIC DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Human - woman DOSE/DURATION : 77112 ug/kg/6Y-I TOXIC EFFECTS : Tumorigenic - Carcinogenic by RTECS criteria Liver - jaundice, other or unclassified Liver - tumors REFERENCE : LANCAO Lancet. (7 Adam St., London WC2N 6AD, UK) V.1- 1823- Volume(issue)/page/year: 1,273,1980 ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Human - woman DOSE : 4284 ug/kg SEX/DURATION : female 84 day(s) pre-mating TOXIC EFFECTS : 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) REFERENCE : BMJOAE British Medical Journal. (British Medical Assoc., BMA House, Tavistock Sq., London WC1H 9JR, UK) V.1- 1857- Volume(issue)/page/year: 2,487,1977 *** END OF RECORD ***