*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8945200
CHEMICAL NAME           : 19-Nor-8-alpha,17-alpha-pregna-1,3,5(10)-trien-20-yne
                          -3,17-diol, 16-beta-methyl-
LAST UPDATED            : 198910
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C21-H23-O2
MOLECULAR WEIGHT        : 307.44
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 17-alpha-Ethinyl-16-beta-methyl-8-alpha-E(sub 2)
   * 17-alpha-Ethinyl-16-beta-methyl-8-alpha-estradiol
   *   17-alpha-Ethinyl-16-beta-methyl-8-alpha-estra-1,3,5(10)-triene-3,17-beta
     -diol
   *   16-beta-Methyl-19-nor-8-alpha,17-alpha-pregna-1,3,5(10)-trien-20-yne-3,1
     7-diol
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 3 mg/kg
SEX/DURATION            : female 3 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
   STEDAM Steroids.  (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609)
   V.1-    1963-  Volume(issue)/page/year: 40,171,1982
 
                            *** END OF RECORD ***