*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8961550
CHEMICAL NAME           : 19-Nor-17-alpha-pregn-5(10)-en-20-yne-3-alpha,17-diol
CAS REGISTRY NUMBER     : 21466-08-0
LAST UPDATED            : 198910
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C20-H28-O2
MOLECULAR WEIGHT        : 300.48
WISWESSER LINE NOTATION : L E5 B666 LUTJ E1 FQ F1UU1 OQ
COMPOUND DESCRIPTOR     : Reproductive Effector
SYNONYMS/TRADE NAMES :
   * 17-alpha-Ethynyl-estr-5(10)-ene-3-alpha,17-beta-diol
   * 3-alpha-Hydroxynorethynodrel
   * 19-Norpregn-5(10)-en-20-yne-3,17-diol, (3-alpha,17-alpha)-
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 450 ug/kg
SEX/DURATION            : female 11-13 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
   Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
   TJADAB Teratology, The International Journal of Abnormal Development. (Alan
   R. Liss, Inc., 41 E. 11th St., New York, NY 10003)  V.1-    1968-
   Volume(issue)/page/year: 3,339,1970
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 450 ug/kg
SEX/DURATION            : female 8-10 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - eye/ear
   Reproductive - Specific Developmental Abnormalities - craniofacial
   (including nose and tongue)
REFERENCE :
   TJADAB Teratology, The International Journal of Abnormal Development. (Alan
   R. Liss, Inc., 41 E. 11th St., New York, NY 10003)  V.1-    1968-
   Volume(issue)/page/year: 3,339,1970
 
                            *** END OF RECORD ***