*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : MD6959200 CHEMICAL NAME : Gona-1,3,5(10)-trien-17-one, 3-methoxy- CAS REGISTRY NUMBER : 4147-10-8 LAST UPDATED : 199712 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C18-H22-O2 MOLECULAR WEIGHT : 270.40 COMPOUND DESCRIPTOR : Reproductive Effector Hormone SYNONYMS/TRADE NAMES : * 18,19-Dinorandrosta-1,3,5(10)-trien-17-one, 3-methoxy- * 3-Methoxygona-1,3,5(10)-trien-17-one * 18-Norestrone methyl ether *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Unreported SPECIES OBSERVED : Rodent - rabbit DOSE : 4500 ug/kg SEX/DURATION : female 1 day(s) pre-mating TOXIC EFFECTS : Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) REFERENCE : 85GRAA "The Control of Fertility," Pincus, G., New York, Academic Press, 1965 Volume(issue)/page/year: -,111,1965 *** END OF RECORD ***