*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : RC8965500
CHEMICAL NAME           : 19-Norpregn-4-en-20-yn-3-one, 17-(acetyloxy)-,
                          3-oxime, (17-alpha)-
CAS REGISTRY NUMBER     : 20799-24-0
LAST UPDATED            : 199506
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : C22-H29-N-O3
MOLECULAR WEIGHT        : 355.52
WISWESSER LINE NOTATION : L E5 B666 OY MUTJ E1 FOV1 F1UU1 OUNQ
COMPOUND DESCRIPTOR     : Reproductive Effector
                          Hormone
SYNONYMS/TRADE NAMES :
   * 17-(Acetyloxy)-19-norpregn-4-en-20-yn-3-one 3-oxime
   * 17-alpha-Ethynyl-17-beta-acetoxy-19-norandrost-4-en-3-one oxime
   * 19-Nor-17-alpha-pregn-4-en-20-yn-3-one, 17-hydroxy-, oxime, acetate
   * Norethisterone acetate 3-oxime
   * Norethisterone oxime acetate
   * ORF 5263
   * So-36
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 1-5 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
REFERENCE :
   SCYYDZ Shengzhi Yu Biyun.  Reproduction and Contraception.  (China
   International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) 1980-
    Volume(issue)/page/year: 10(3),67,1990
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 4 mg/kg
SEX/DURATION            : female 6-9 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 :
   SCYYDZ Shengzhi Yu Biyun.  Reproduction and Contraception.  (China
   International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) 1980-
    Volume(issue)/page/year: 10(3),67,1990
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1500 ug/kg
SEX/DURATION            : female 2-4 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
REFERENCE :
   YHTPAD Yaoxue Tongbao. Bulletin of Pharmacology. (China International Book
   Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.13-23,    1978-88. For
   publisher information, see ZYZAEU.  Volume(issue)/page/year: 16(6),53,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5 mg/kg
SEX/DURATION            : female 2 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
REFERENCE :
   YHTPAD Yaoxue Tongbao. Bulletin of Pharmacology. (China International Book
   Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.13-23,    1978-88. For
   publisher information, see ZYZAEU.  Volume(issue)/page/year: 16(6),53,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 6 mg/kg
SEX/DURATION            : female 2-4 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
REFERENCE :
   YHTPAD Yaoxue Tongbao. Bulletin of Pharmacology. (China International Book
   Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.13-23,    1978-88. For
   publisher information, see ZYZAEU.  Volume(issue)/page/year: 16(6),53,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 6 mg/kg
SEX/DURATION            : female 2-4 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - pre-implantation mortality (e.g. reduction in
   number of implants per female; total number of implants per corpora lutea)
REFERENCE :
   YHTPAD Yaoxue Tongbao. Bulletin of Pharmacology. (China International Book
   Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.13-23,    1978-88. For
   publisher information, see ZYZAEU.  Volume(issue)/page/year: 16(6),53,1981
 
                            *** END OF RECORD ***