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Product Name: cingestol
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16915-71-2

16915-71-2 structure

16915-71-2 structure

Name: cingestol
Chemical Name: (8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,4,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
CAS Number: 16915-71-2
Molecular Formula: C₂₀H₂₈O
Molecular Weight: 284.43600
Create Date: 2018-08-27 18:15:54
Modify Date: 2025-08-25 16:49:03

Name	(8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,4,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
Synonyms	EINECS 240-964-1 Lutisan 19-Nor-17alpha-pregn-5-en-20-yn-17-ol Cingestolo Cingestolum CINGESTOL

Density	1.08g/cm3
Boiling Point	399.6ºC at 760mmHg
Molecular Formula	C₂₀H₂₈O
Molecular Weight	284.43600
Flash Point	176.9ºC
Exact Mass	284.21400
PSA	20.23000
LogP	4.31350
Vapour Pressure	0mmHg at 25°C
Index of Refraction	1.568

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RC8961110

CHEMICAL NAME :: 19-Nor-17-alpha-pregn-5-en-20-yn-17-ol

CAS REGISTRY NUMBER :: 16915-71-2

LAST UPDATED :: 198910

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C20-H28-O

MOLECULAR WEIGHT :: 284.48

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1825 ug/kg

SEX/DURATION :: female 52 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - ovaries, fallopian tubes

REFERENCE :: CCPTAY Contraception. (Geron-X, Inc., POB 1108, Los Altos, CA 94022) V.1- 1970- Volume(issue)/page/year: 7,503,1973

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