5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy-

Modify Date: 2025-09-27 19:08:16

5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure
5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- structure
 Common Name 5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy-
CAS Number 20703-79-1 Molecular Weight 427.37200
Density 1.389g/cm3 Boiling Point 549.2ºC at 760 mmHg
Molecular Formula C21H31BrO4 Melting Point N/A
MSDS N/A Flash Point 286ºC

 Names

Name 3.β.,17.α.-Dihydroxy-21-bromo-5.α.-pregnan-11,20-dione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.389g/cm3
Boiling Point 549.2ºC at 760 mmHg
Molecular Formula C21H31BrO4
Molecular Weight 427.37200
Flash Point 286ºC
Exact Mass 426.14100
PSA 74.60000
LogP 3.26410
Vapour Pressure 2.37E-14mmHg at 25°C
Index of Refraction 1.577

 Synthetic Route

(3β,5α)-3,17-dihydroxypregnane-11,20-dione structure

(3β,5α)-3,17-di...

CAS#:570-39-8

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5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure

5.alpha.-Pregna...

CAS#:20703-79-1

Literature: Pataki et al. Journal of the American Chemical Society, 1952 , vol. 74, p. 5615 Full Text View citing articles Show Details Chamberlin,Chemerda Journal of the American Chemical Society, 1955 , vol. 77, p. 1221,1223
Pregnane-11,20-dione,3-hydroxy-, (3a,5b)- structure

Pregnane-11,20-...

CAS#:565-99-1

~%

5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure

5.alpha.-Pregna...

CAS#:20703-79-1

Literature: Chamberlin,Chemerda Journal of the American Chemical Society, 1955 , vol. 77, p. 1221,1223
Pregn-16-ene-11,20-dione,3-(acetyloxy)-, (3b,5a)- (9CI) structure

Pregn-16-ene-11...

CAS#:2724-68-7

~%

5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure

5.alpha.-Pregna...

CAS#:20703-79-1

Literature: Pataki et al. Journal of the American Chemical Society, 1952 , vol. 74, p. 5615
[(3S,5S,8S,9S,10S,13S,14S,17R)-17-acetyl-17-hydroxy-10,13-dimethyl-11-oxo-2,3,4,5,6,7,8,9,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate structure

[(3S,5S,8S,9S,1...

CAS#:7253-11-4

~%

5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure

5.alpha.-Pregna...

CAS#:20703-79-1

Literature: Pataki et al. Journal of the American Chemical Society, 1952 , vol. 74, p. 5615
(2aS,4S,6aS,6bS,8aS,8bS,9aR,10aS,10bS)-8b-acetyl-6a,8a-dimethyl-7-oxohexadecahydro-1H-naphtho[2',1':4,5]indeno[1,2-b]oxiren-4-yl acetate structure

(2aS,4S,6aS,6bS...

CAS#:909-98-8

~%

5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy- Structure

5.alpha.-Pregna...

CAS#:20703-79-1

Literature: Pataki et al. Journal of the American Chemical Society, 1952 , vol. 74, p. 5615

 Synonyms

21-Angelikyl-protoaescigenin
21-Angeloyl-protoaescigenin
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Chemsrc provides CAS#:20703-79-1 MSDS, density, melting point, boiling point, structure, etc. Its name is 5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy->> amp version: 5.alpha.-Pregnane-11,20-dione, 21-bromo-3.beta., 17.alpha.-dihydroxy-

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