Bufogenin B

Title: Bufogenin B
CAS Registry Number: 465-19-0
CAS Name: (3b,5b,16b)-3,14,16-Trihydroxybufa-20,22-dienolide
Additional Names: desacetylbufotalin
Molecular Formula: C24H34O5
Molecular Weight: 402.52
Percent Composition: C 71.61%, H 8.51%, O 19.87%
Literature References: Isolated from the Chinese drug Ch'an Su which is prepd from Chinese toads (Bufo asiaticus = Bufo gargarizans Cantor); also obtained from bufotalin: Ruckstuhl, Meyer, Helv. Chim. Acta 40, 1270 (1957).
Properties: Elongated prisms from methanol, begins to sinter at 195°, dec 210-223°. [a]D19 +30° (c = 1.039 in dioxane). Very sparingly sol in chloroform, methanol, acetone.
Optical Rotation: [a]D19 +30° (c = 1.039 in dioxane)
Status: This monograph has been retired and is no longer subject to revision or update.
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