*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8945050
CHEMICAL NAME           : 19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-4,17-di
                          ol, 3-methoxy-
LAST UPDATED            : 198910
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C21-H26-O3
MOLECULAR WEIGHT        : 326.47
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 3-Methoxy-19-nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-4,17-diol
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 60 mg/kg
SEX/DURATION            : female 1-6 day(s) after conception
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: 30,343,1977
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 6 mg/kg
SEX/DURATION            : female 1-6 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
REFERENCE :
   STEDAM Steroids.  (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609)
   V.1-    1963-  Volume(issue)/page/year: 30,343,1977
 
                            *** END OF RECORD ***