*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TU5011600 CHEMICAL NAME : Pregn-4-ene-3,20-dione, 16-alpha,17-dihydroxy-, cyclic acetal with acetone CAS REGISTRY NUMBER : 4968-09-6 LAST UPDATED : 199712 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C24-H34-O4 MOLECULAR WEIGHT : 386.58 WISWESSER LINE NOTATION : T F5 E5 B666 GO IO RV PUTJ A1 E1 FV1 H1 H1 COMPOUND DESCRIPTOR : Reproductive Effector Hormone SYNONYMS/TRADE NAMES : * Algestone acetonide * Alphasone acetonide * Pregn-4-ene-3,20-dione, 16,17-((1-methylethylidene)bis(oxy))-, (16-alpha)- * Progesterone, 16-alpha,17-dihydroxy-, cyclic acetal with acetone * Progesterone 16,17-acetonide * W 3395 *** HEALTH HAZARD DATA *** ** REPRODUCTIVE DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Administration onto the skin SPECIES OBSERVED : Rodent - rabbit DOSE : 250 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 : STEDAM Steroids. (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609) V.1- 1963- Volume(issue)/page/year: 7,341,1966 *** END OF RECORD ***