99% purity Dexamethasone acetate raw powder for allergy

Product name :Dexamethasone acetate
Product alias: 2 - ((8 s, 9 r, 10 s and 11 s, s 13, 14 s, r, r) of 17; 4 - (9 - fluoro - 11 - dihydroxy - 10,13,16 - trimethyl - 4 - oxo - 6,7,8,11,12,14,15,16 - octahydrocyclopenta [a] phenanthren - 17 - yl) - 3 - hydroxy - 4 - oxobutanoate; 20 - dione, 9 - fluoro - 11 - beta, 17, 21 - trihydroxy - 16 - alpha - methyl - 4 - diene pregna - - 3; 9alpha-Fluoro-16alpha-methylprednisoloneacetate; ,17,21 - trihydroxy 9 - Fluoro - 11-16 - methylpregna - 1, 4 - diene - 3, 20 - dione21 - acetate; 9 - Fluoro - 11 - dihydroxy - 16 - methyl - 4 - dioxopregna - 1, 4-11 dien - 21 - ylacetate; 9 - fluoro - 11 - beta, 17, 21 - trihydroxy - 16 - alpha - methylpregna - 1, 4 - diene - 3, 20 - dione. 9 - Fluoro - 11 beta, 17, 21 - trihydroxy - 16 alpha - methylpregna - 1, 4 - diene - 3, 20 - dione21 - acetate
CAS no. : 1177-87-3
Molecular formula: C24H31FO6
Molecular weight: 434.5
EINECS no. : 214-646-8
Melting point: 238-240 ° C
Specific rotation: D25+73°
Boiling point: 579.4 + / - 50.0 ° C
Density: 1.1517
Index of refraction: 87°(C=1,Dioxane)
Storage conditions: 2-8°C
Packing: 25KG/ cardboard drum
Appearance: white or almost white crystalline powder, odorless, slightly bitter taste.
Solubility: easily dissolved in acetone, dissolved in methanol or ethanol, slightly dissolved in ethanol or chloroform, very slightly dissolved in ether, insoluble in water.