*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8961100
CHEMICAL NAME           : 19-Nor-17-alpha-pregn-4-en-17-ol
CAS REGISTRY NUMBER     : 965-90-2
LAST UPDATED            : 199103
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : C20-H32-O
MOLECULAR WEIGHT        : 288.52
WISWESSER LINE NOTATION : L E5 B666 MUTJ E1 FQ F2
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * Durabolin-O
   * Duraboral
   * Ethylestrenol
   * Ethylnandrol
   * Maxibalin
   * Maxibolin
   * Neodurabolin
   * 19-Norpregn-4-en-17-ol, (17-alpha)-
   * Orabolin
   * ORG-483
   * Orgabolin
   * Orgaboral
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : >666700 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NIIRDN Drugs in Japan (Ethical Drugs).  (Yakugyo Jiho Co., Ltd., Tokyo,
   Japan)  Volume(issue)/page/year: 6,113,1982
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1 gm/kg
SEX/DURATION            : female 2-6 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
   Reproductive - Fertility - abortion
REFERENCE :
   FESTAS Fertility and Sterility.  (American Fertility Soc., 608 13th Ave. S,
   Birmingham, AL 35282) V.1-    1950-  Volume(issue)/page/year: 22,735,1971
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1 gm/kg
SEX/DURATION            : female 15-19 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Newborn - stillbirth
REFERENCE :
   FESTAS Fertility and Sterility.  (American Fertility Soc., 608 13th Ave. S,
   Birmingham, AL 35282) V.1-    1950-  Volume(issue)/page/year: 22,735,1971
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 20 mg/kg
SEX/DURATION            : female 17-20 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
   ECJPAE Endocrinologia Japonica.  (Japan Pub. Trading Co., Ltd., POB 5030,
   Tokyo International, Tokyo, Japan)  V.1-    1954-  Volume(issue)/page/year:
   24,77,1977
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 15 mg/kg
SEX/DURATION            : male 15 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland,
   accessory glands
REFERENCE :
   IJMRAQ Indian Journal of Medical Research.  (Indian Council of Medical
   Research, Ansari Nagar, New Delhi 110 029, India)  V.1-    1913-
   Volume(issue)/page/year: 59,768,1971
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 28 mg/kg
SEX/DURATION            : female 14 day(s) pre-mating
TOXIC EFFECTS :
   Reproductive - Maternal Effects - ovaries, fallopian tubes
   Reproductive - Maternal Effects - uterus, cervix, vagina
   Reproductive - Fertility - other measures of fertility
REFERENCE :
   CCPTAY Contraception.  (Geron-X, Inc., POB 1108, Los Altos, CA 94022)  V.1-
   1970-  Volume(issue)/page/year: 5,489,1972
 
                            *** END OF RECORD ***