*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8924800
CHEMICAL NAME           : 19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne,
                          21-chloro-3,17-dimethoxy-
CAS REGISTRY NUMBER     : 7548-44-9
LAST UPDATED            : 198910
DATA ITEMS CITED        : 4
MOLECULAR FORMULA       : C22-H27-Cl-O2
MOLECULAR WEIGHT        : 358.94
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * BDH 2700
   * 21-Chloro-3,17-dimethoxy-19-nor-17-alpha-pregn-1,3,5(10)-trien-20-yne
   * 17-alpha-Chloroethynyl-3,17-beta-dimethoxy-oestra-1,3,5(10)-triene
   * 19-Norpregna-1,3,5(10)-trien-20-yne, 21-chloro-3,17-dimethoxy-,  
   (17-alpha)-
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 90 ug/kg
SEX/DURATION            : female 2 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - female fertility index (e.g. # females pregnant
   per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
   ACENA7 Acta Endocrinologica (Copenhagen).  (Periodica, Skolegade 12 E,
   DK-2500 Valby, Denmark) V.1-    1948-  Volume(issue)/page/year: 53,443,1966
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 12300 ng/kg
SEX/DURATION            : female 3 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
   ACENA7 Acta Endocrinologica (Copenhagen).  (Periodica, Skolegade 12 E,
   DK-2500 Valby, Denmark) V.1-    1948-  Volume(issue)/page/year: 53,443,1966
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 30 ug/kg
SEX/DURATION            : female 2 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - female fertility index (e.g. # females pregnant
   per # sperm positive females; # females pregnant per # females mated)
REFERENCE :
   ACENA7 Acta Endocrinologica (Copenhagen).  (Periodica, Skolegade 12 E,
   DK-2500 Valby, Denmark) V.1-    1948-  Volume(issue)/page/year: 53,443,1966
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 9 ug/kg
SEX/DURATION            : female 3 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Maternal Effects - uterus, cervix, vagina
REFERENCE :
   ACENA7 Acta Endocrinologica (Copenhagen).  (Periodica, Skolegade 12 E,
   DK-2500 Valby, Denmark) V.1-    1948-  Volume(issue)/page/year: 53,443,1966
 
                            *** END OF RECORD ***