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Betamethasone EP Impurity D

Betamethasone EP Impurity D Structure
CAS No.
52619-05-3
Chemical Name:
Betamethasone EP Impurity D
Synonyms
9-Fluoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-21-yl ethoxycarboxylate;Betamethasone impurity D;Betamethasone EP Impurity D;Betamethasone 21-(ethyl carbonate);Betamethasone Impurity 4（Betamethasone EP Impurity D）;BETAMETHASONE EP IMPURITY D | BETAMETHASONE 21-O-ETHYL CARBONATE;9-uoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna- 1,4-dien-21-yl ethoxycarboxylate;Pregna-1,4-diene-3,20-dione, 21-[(ethoxycarbonyl)oxy]-9-fluoro-11,17-dihydroxy-16-methyl-, (11β,16β)-;ethyl (2-((8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl- 3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl) carbonate;Ethyl (2-((8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl) carbonate (Betamethasone Impurity)
CBNumber:
CB12741726
Molecular Formula:
C25H33FO7
Molecular Weight:
464.52
MOL File:
52619-05-3.mol
Modify Date:
2023/5/15 10:44:02
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Betamethasone EP Impurity D Properties

Boiling point 591.8±50.0 °C(Predicted)
Density 1.30±0.1 g/cm3(Predicted)
solubility Ethyl Acetate (Slightly), Methanol (Slightly, Sonicated)
pka 12.00±0.70(Predicted)
form Solid
color White to Pale Red

Betamethasone EP Impurity D Preparation Products And Raw materials

Raw materials

Preparation Products

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Betamethasone EP Impurity D Betamethasone Impurity 4（Betamethasone EP Impurity D） ethyl (2-((8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl- 3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl) carbonate Betamethasone impurity D Betamethasone 21-(ethyl carbonate) 9-Fluoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-21-yl ethoxycarboxylate Ethyl (2-((8S,9R,10S,11S,13S,14S,16S,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl) carbonate (Betamethasone Impurity) Pregna-1,4-diene-3,20-dione, 21-[(ethoxycarbonyl)oxy]-9-fluoro-11,17-dihydroxy-16-methyl-, (11β,16β)- 9-uoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna- 1,4-dien-21-yl ethoxycarboxylate BETAMETHASONE EP IMPURITY D | BETAMETHASONE 21-O-ETHYL CARBONATE 52619-05-3