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MSDS  : 19-Norpregn-4-en-20-yn-3-one, 17-((trimethylsilyl)oxy)-, oxime, (17-alpha)-
CAS  : 82332-10-3
SYNONYMS  : * Siloxy-norethisterone oxime * So-35 * 17-((Trimethylsilyl)oxy)-19-norpregn-4-en-20-yn-3-one 3-oxime
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : RC9044500
CHEMICAL NAME : 19-Norpregn-4-en-20-yn-3-one,
17-((trimethylsilyl)oxy)-, oxime, (17-alpha)-
CAS REGISTRY NUMBER : 82332-10-3
LAST UPDATED : 199506
DATA ITEMS CITED : 2
MOLECULAR FORMULA : C21-H35-N-O2-Si
MOLECULAR WEIGHT : 361.66
COMPOUND DESCRIPTOR : Reproductive Effector
Hormone
SYNONYMS/TRADE NAMES :
* Siloxy-norethisterone oxime
* So-35
* 17-((Trimethylsilyl)oxy)-19-norpregn-4-en-20-yn-3-one 3-oxime

*** 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 : 20 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

*** END OF RECORD ***
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