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1169-79-5

1169-79-5 structure

1169-79-5 structure

Name: quinestradol
Chemical Name: (16α,17β)-3-(Cyclopentyloxy)estra-1,3,5(10)-triene-16,17-diol
CAS Number: 1169-79-5
Molecular Formula: C₂₃H₃₂O₃
Molecular Weight: 356.49800
Catalog: API Hormone and endocrine-regulating drugs Estrogen and progestogen drugs
Create Date: 2018-09-04 05:39:08
Modify Date: 2025-08-25 05:38:29

Name	(16α,17β)-3-(Cyclopentyloxy)estra-1,3,5(10)-triene-16,17-diol
Synonyms	4-oxo-3,4-dihydroquinazoline-2-carboxylic acid 3-cyclopentyl ether of estriol EINECS 214-623-2 quinazolone-2-carboxylic acid Oestriol-3-cyclopentylaether Quinestradiol 3,4-dihydro-4-oxoquinazoline-2-carboxylic acid 4-Chinazolon-2-carbonsaeure 4-Quinazolone-2-carboxylic Acid 4-Oxo-3,4-dihydro-chinazolin-2-carbonsaeure Chinazol-4-on-2-carbonsaeure

Density	1.188 g/cm3
Boiling Point	510.2ºC at 760 mmHg
Melting Point	98-100ºC
Molecular Formula	C₂₃H₃₂O₃
Molecular Weight	356.49800
Flash Point	262.3ºC
Exact Mass	356.23500
PSA	49.69000
LogP	4.19580
Vapour Pressure	3.12E-11mmHg at 25°C
Index of Refraction	1.597

CHEMICAL IDENTIFICATION

RTECS NUMBER :: KG7395000

CHEMICAL NAME :: Estra-1,3,5(10)-triene-16-alpha,17-beta-diol, 3-(cyclopentyloxy)-

CAS REGISTRY NUMBER :: 1169-79-5

LAST UPDATED :: 198910

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C23-H32-O3

MOLECULAR WEIGHT :: 356.55

WISWESSER LINE NOTATION :: L E5 B666TTT&J E1 FQ GQ OO- AL5TJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 713 ug/kg

SEX/DURATION :: female 16-19 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - urogenital system

REFERENCE :: AOGMAU Annali di Ostetricia, Ginecologia, Medicina Perinatale. (Istiuti Clinica di Perfezionamento di Milano, Via Daverio, 6, 20122 Milan, Italy) V.93- 1972- Volume(issue)/page/year: 96,83,1975

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 500 ug/kg

SEX/DURATION :: female 1 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 :: STEDAM Steroids. (Holden-Day Inc., 4432 Telegraph Ave., Oakland, CA 94609) V.1- 1963- Volume(issue)/page/year: 20,223,1972

137-43-9 structure

137-43-9

50-27-1 structure

50-27-1

7732-18-5 structure

7732-18-5

~90%

1169-79-5 structure

1169-79-5

Literature: Gueritee; Nicolas Patent: US4110324 A1, 1978 ;

Precursor 3
137-43-9 50-27-1 7732-18-5
DownStream 0

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