*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8964800
CHEMICAL NAME           : 19-Nor-17-alpha-pregn-5(10)-en-20-yn-3-one
CAS REGISTRY NUMBER     : 13081-50-0
LAST UPDATED            : 198910
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C20-H26-O
MOLECULAR WEIGHT        : 282.46
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 17-alpha-Ethynylestra-delta(sup 5)-10-enolone
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Unreported
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 60 mg/kg
SEX/DURATION            : female 1 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Fertility - other measures of fertility
REFERENCE :
   FESTAS Fertility and Sterility.  (American Fertility Soc., 608 13th Ave. S,
   Birmingham, AL 35282) V.1-    1950-  Volume(issue)/page/year: 12,346,1961
 
                            *** END OF RECORD ***