19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI)

Modify Date: 2026-07-16 14:41:22

19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI) Structure
19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI) structure
Common Name 19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI)
CAS Number 17550-03-7 Molecular Weight 314.46200
Density 1.068g/cm3 Boiling Point 443.2ºC at 760mmHg
Molecular Formula C21H30O2 Melting Point N/A
MSDS N/A Flash Point 188.6ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.068g/cm3
Boiling Point 443.2ºC at 760mmHg
Molecular Formula C21H30O2
Molecular Weight 314.46200
Flash Point 188.6ºC
Exact Mass 314.22500
PSA 29.46000
LogP 4.69240
Vapour Pressure 1.24E-08mmHg at 25°C
Index of Refraction 1.548
InChIKey NVYBDSYHTNOJSQ-MJCUULBUSA-N
SMILES CCC1(O)CCC2C3CCc4cc(OC)ccc4C3CCC21C

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~97%

19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI) Structure

19-Norpregna-1,...

CAS#:17550-03-7

Learn More
Literature: Felpin, Francois-Xavier; Fouquet, Eric Chemistry - A European Journal, 2010 , vol. 16, # 41 p. 12440 - 12445

~%

19-Norpregna-1,3,5(10)-trien-17-ol,3-methoxy-, (17a)-(9CI) Structure

19-Norpregna-1,...

CAS#:17550-03-7

Learn More
Literature: Colton et al. Journal of the American Chemical Society, 1957 , vol. 79, p. 1123,1126

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  2

DownStream  0

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

einecs 241-535-1
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  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: Molecular formula of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is C21H30O2.
Q: What is the boiling point of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: Boiling point of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is 443.2ºC at 760mmHg.
Q: What is the molecular weight of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: Molecular weight of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is 314.46200.
Q: What is the InChIKey of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: InChIKey of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is NVYBDSYHTNOJSQ-MJCUULBUSA-N.
Q: What is the CAS number of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: CAS number of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is 17550-03-7.
Q: What is the polar surface area (PSA) of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: Polar surface area (PSA) of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is 29.46000.
Q: What is the SMILES notation of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: SMILES notation of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is CCC1(O)CCC2C3CCc4cc(OC)ccc4C3CCC21C.
Q: What is the Chinese name of 17550-03-7?
A: Chinese name of 17550-03-7 is 17550-03-7.
Q: What is the English name of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: The English name of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol.
Q: What is the LogP of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol?
A: LogP of (8R,9S,13S,14S,17S)-17-ethyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol is 4.69240.

 factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Dayang Chem (Hangzhou) Co., Ltd.
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