Properties: Hydrated crystals from dil acetone; anhydr shiny spears from benzene or acetone, mp 189-191°. [a]D19 +93.8° (c = 1.4 in abs ethanol).
Melting point: mp 189-191°
Optical Rotation: [a]D19 +93.8° (c = 1.4 in abs ethanol)
Derivative Type: 3,21-Diacetate
Percent Composition: C 69.42%, H 8.39%, O 22.19%
Properties: Clusters of needles from ether-pentane, mp 148-149.5°. [a]D18 +77.5 ± 2.5° (acetone); [a]D19 +85.6 ± 2° (dioxane).
Melting point: mp 148-149.5°
Optical Rotation: [a]D18 +77.5 ± 2.5° (acetone); [a]D19 +85.6 ± 2° (dioxane)
Status: This monograph has been retired and is no longer subject to revision or update.
产品链接: 566-02-9››