2884-51-7

2884-51-7 structure

Name: 21-o-acetyl dexamethasone 9,11-epoxide
Chemical Name: (9|A,11|A,16|A)-21-(Acetyloxy)-9,11-epoxy-17-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione
CAS Number: 2884-51-7
Molecular Formula: C₂₄H₃₀O₆
Molecular Weight: 414.491
Create Date: 2017-10-26 00:29:48
Modify Date: 2026-08-06 13:14:13

Name	(9\|A,11\|A,16\|A)-21-(Acetyloxy)-9,11-epoxy-17-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione
Synonyms	Dexamethasone Acetate Impurity F 21-O-Acetyl Dexamethasone 9,11-Epoxide (9β,11β,16α)-17-Hydroxy-16-methyl-3,20-dioxo-9,11-epoxypregna-1,4-dien-21-yl acetate 21-O-Acetyl Dexamethasone 9,11-oxide（Desoximetasone Impurity F） Desoximetasone Impurity F Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9,11-oxy-17-hydroxy-16-methyl-, (9β,11β,16α) Dexamethasone Acetate Impurity 6（Dexamethasone Acetate Impurity F） (9β,11β,16α)-21-(Acetyloxy)-9,11-oxy-17-hydroxy-16-Methyl-pregna-1,4-diene-3,20-dione 9,11oxy-17,21-dihydroxy-16α-methylpregna-1,4-diene-3,20-dione 21-acetate 2-((4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-Hydroxy-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)-2-oxoethyl acetate (Dexamethasone Acetate Impurity) Dexamethasone Acetate Impurity 6 21-Acetoxy-3,20-dioxo-9beta,11beta-oxy-17alpha-hydroxy-16alpha-methyl-1,4-pregnadiene 21-O-Acetyl DexaMethasone 9,11-oxide Dexamethasone impurity 8/Dexamethasone Acetate Impurity F/2-((4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-hydroxy-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)-2-oxoethyl acetate 9,11beta-oxy-17-hydroxy-16alpha-methyl-3,20-dioxo-9beta-pregna-1,4-dien-21-yl Acetate

Density	1.3±0.1 g/cm3
Boiling Point	575.1±50.0 °C at 760 mmHg
Molecular Formula	C₂₄H₃₀O₆
Molecular Weight	414.491
Flash Point	195.8±23.6 °C
Exact Mass	414.204254
PSA	93.20000
LogP	3.32
Vapour Pressure	0.0±3.6 mmHg at 25°C
Index of Refraction	1.591

108-24-7

24916-90-3

~95%

2884-51-7

Literature: TARO PHARMACEUTICAL INDUSTRIES LTD.; CHERNIAK, Simon; CYJON, Rosa; OZER, Ilana; NUDELMAN, Igor Patent: WO2012/11106 A1, 2012 ; Location in patent: Page/Page column 19 ;

103466-44-0

2884-51-7

Literature: Hulcoop, David G.; Shapland, Peter D.P. Steroids, 2013 , vol. 78, # 12-13 p. 1281 - 1287

37413-91-5

2884-51-7

Literature: Hulcoop, David G.; Shapland, Peter D.P. Steroids, 2013 , vol. 78, # 12-13 p. 1281 - 1287

50-24-8

2884-51-7

Literature: Hulcoop, David G.; Shapland, Peter D.P. Steroids, 2013 , vol. 78, # 12-13 p. 1281 - 1287

Precursor 5
108-24-7 24916-90-3 103466-44-0 37413-91-5
50-24-8
DownStream 1
1177-87-3

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