*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC9043000
CHEMICAL NAME           : 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 17-methoxy-
CAS REGISTRY NUMBER     : 70795-38-9
LAST UPDATED            : 198910
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C21-H28-O2
MOLECULAR WEIGHT        : 312.49
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 17-Methoxy-19-nor-17-alpha-pregn-4-en-20-yn-3-one
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 975 mg/kg
SEX/DURATION            : male 65 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Paternal Effects - testes, epididymis, sperm duct
   Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland,
   accessory glands
   Reproductive - Fertility - male fertility index (e.g. # males impregnating
   females per # males exposed to fertile nonpregnant females)
REFERENCE :
   JOAND3 Journal of Andrology.  (Lippincott/Harper, Journal Fulfillment Dept.,
   2350 Virginia Ave., Hagerstown, MD 21740)  V.1-    1980-
   Volume(issue)/page/year: 4,49,1983
 
                            *** END OF RECORD ***