Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI)

Modify Date: 2025-08-25 11:12:03

Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI) Structure
Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI) structure
Common Name Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI)
CAS Number 21853-83-8 Molecular Weight 386.48100
Density 1.23g/cm3 Boiling Point 523ºC at 760mmHg
Molecular Formula C23H30O5 Melting Point N/A
MSDS N/A Flash Point 227.1ºC

 Names

Name 16,17-Oxido-4-pregnen-21-ol-3,20-dione-21-acetate

 Chemical & Physical Properties

Density 1.23g/cm3
Boiling Point 523ºC at 760mmHg
Molecular Formula C23H30O5
Molecular Weight 386.48100
Flash Point 227.1ºC
Exact Mass 386.20900
PSA 72.97000
LogP 3.39800
Vapour Pressure 4.91E-11mmHg at 25°C
Index of Refraction 1.566

 Synthetic Route

~%

Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI) Structure

Pregn-4-ene-3,2...

CAS#:21853-83-8

Literature: Julian et al. Journal of the American Chemical Society, 1950 , vol. 72, p. 5145

~66%

Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI) Structure

Pregn-4-ene-3,2...

CAS#:21853-83-8

Literature: Protiva, Jiri; Nguyen, Thi Thu Huong; Urban, Jiri; Klinotova, Eva Collection of Czechoslovak Chemical Communications, 1997 , vol. 62, # 7 p. 1095 - 1104

~%

Pregn-4-ene-3,20-dione,21-(acetyloxy)-16,17-epoxy-, (16a)- (9CI) Structure

Pregn-4-ene-3,2...

CAS#:21853-83-8

Literature: Farbwerke Hoechst Patent: US2752340 , 1953 ; Full Text Show Details Farbwerke Hoechst Patent: DE930030 , 1952 ;

 Precursor & DownStream

Precursor  2

DownStream  0

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