*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : RC9052000 CHEMICAL NAME : A-Nor-17-alpha-pregn-20-yne-2-beta,17-beta-diol, 2-alpha-methyl- CAS REGISTRY NUMBER : 53-38-3 LAST UPDATED : 198910 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C21-H28-O2 MOLECULAR WEIGHT : 312.49 WISWESSER LINE NOTATION : L E5 B665TJ A1 E1 FQ F1UU1 OQ O1 COMPOUND DESCRIPTOR : Reproductive Effector Hormone SYNONYMS/TRADE NAMES : * 2-alpha-Methyl-A-nor-17-alpha-pregn-20-yne-2-beta,17-beta-diol *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE : 2500 ug/kg SEX/DURATION : female 3 day(s) after conception TOXIC EFFECTS : Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) REFERENCE : STEDAM Steroids. (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609) V.1- 1963- Volume(issue)/page/year: 4,657,1964 TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Parenteral SPECIES OBSERVED : Rodent - rat DOSE : 7500 ug/kg SEX/DURATION : female 1 day(s) after conception TOXIC EFFECTS : Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated) REFERENCE : STEDAM Steroids. (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609) V.1- 1963- Volume(issue)/page/year: 4,657,1964 TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Parenteral SPECIES OBSERVED : Rodent - rat DOSE : 2500 ug/kg SEX/DURATION : female 1 day(s) after conception TOXIC EFFECTS : Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) REFERENCE : STEDAM Steroids. (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609) V.1- 1963- Volume(issue)/page/year: 4,657,1964 *** END OF RECORD ***