*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TU5570270 CHEMICAL NAME : 17-alpha-Pregn-4-en-20-yn-3-one, 17-hydroxy-, and 19-nor-17-alpha-pregna-1,3,5(10)-trien- 20-yne-3,17-diol (1:1000) CAS REGISTRY NUMBER : 53568-84-6 LAST UPDATED : 198910 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C21-H28-O2.C20-H24-O2 MOLECULAR WEIGHT : 608.93 COMPOUND DESCRIPTOR : Reproductive Effector Human Hormone SYNONYMS/TRADE NAMES : * Amenorone forte * Ethinylestradiol and ethisterone (1:1000) * Ethisterone and ethinylestradiol (1000:1) *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Human - woman DOSE : 276 mg/kg SEX/DURATION : female 6-38 week(s) after conception TOXIC EFFECTS : Reproductive - Specific Developmental Abnormalities - urogenital system REFERENCE : LANCAO Lancet. (7 Adam St., London WC2N 6AD, UK) V.1- 1823- Volume(issue)/page/year: 2,267,1958 TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Human - woman DOSE : 3 mg/kg SEX/DURATION : female 5 week(s) after conception TOXIC EFFECTS : Reproductive - Specific Developmental Abnormalities - Central Nervous System REFERENCE : NATUAS Nature. (Nature Subscription Dept., POB 1018, Manasguan, NJ 08736) V.1- 1869- Volume(issue)/page/year: 216,83,1967 *** END OF RECORD ***