*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8915000
CHEMICAL NAME           : 19-Norpregna-4,9-dien-20-yn-3-one,
                          21-chloro-17-hydroxy-, (17-alpha)-, mixed with
                          (17-alpha)-
                          3-methoxy-19-norpregna-1,3,5(10)-trien-20-yn-17-ol
                          (20:1)
LAST UPDATED            : 198910
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C20-H23-Cl-O2.C21-H26-O2(20:1)
MOLECULAR WEIGHT        : 6927.44
WISWESSER LINE NOTATION : L E5 B666 OV MUTJ E1 FQ F1UU1G 20 &L E5 B666TTT&J E1
                          FQ F1UU1 OO1
COMPOUND DESCRIPTOR     : Tumorigen
SYNONYMS/TRADE NAMES :
   * Ethynerone mixed with mestranol (20:1)
   * Mestranol mixed with ethynerone (1:20)
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 243 mg/kg/47W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - bronchiogenic carcinoma
   Skin and Appendages - tumors
REFERENCE :
   JJIND8 JNCI, Journal of the National Cancer Institute.  (Washington, DC)
   V.61-79, 1978-87. For publisher information, see JNCIEQ.
   Volume(issue)/page/year: 65,137,1980
 
                            *** END OF RECORD ***