*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : RC8960560 CHEMICAL NAME : 19-Norpregn-4-ene-3,20-dione, 4-chloro- CAS REGISTRY NUMBER : 99950-46-6 BEILSTEIN REFERENCE NO. : 3160642 REFERENCE : 4-07-00-02390 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C20-H27-Cl-O2 MOLECULAR WEIGHT : 334.92 COMPOUND DESCRIPTOR : Reproductive Effector Hormone SYNONYMS/TRADE NAMES : * 4-Chloro-19-norprogesterone * 4-Chloro-19-norpregn-4-ene-3,20-dione *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE : 2 mg/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 *** END OF RECORD ***