*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8970000
CHEMICAL NAME           : 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 4-chloro-
LAST UPDATED            : 198910
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C20-H25-Cl-O2
MOLECULAR WEIGHT        : 332.90
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 4-Chloro-19-norethynyltestosterone
   * 4-Chloro-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       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE                    : 625 ug/kg
SEX/DURATION            : female 1 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Fertility - other measures of fertility
REFERENCE :
   ACEDAB Acta Endocrinologica, Supplementum (Copenhagen).  (Periodica,
   Skolegade 12 E, DK-2500 Valby, Denmark)  No.1-    1948-
   Volume(issue)/page/year: 73,17,1963
 
                            *** END OF RECORD ***