Dioscin

Title: Dioscin
CAS Registry Number: 19057-60-4
CAS Name: (25R)-Spirost-5-en-3b-yl O-6-deoxy-a-L-mannopyranosyl-(1®2)-O-[6-deoxy-a-L-mannopyranosyl-(1®4)]-b-D-glucopyranoside
Additional Names: diosgenin bis-a-L-rhamnopyranosyl-(1®2 and 1®4)-b-D-glucopyranoside
Molecular Formula: C45H72O16
Molecular Weight: 869.04
Percent Composition: C 62.19%, H 8.35%, O 29.46%
Literature References: From Dioscorea tokoro Mal., Dioscoreaceae. Isoln: Tsukamoto et al., Pharm. Bull. 4, 35 (1956); Heitz, Compt. Rend. 248, 283 (1958). Structure: Kawasaki, Yamauchi, Chem. Pharm. Bull. 10, 703 (1962).
Properties: Crystals, decomp 275-277°. [a]D13 -115° (c = 0.373 in ethanol).
Optical Rotation: [a]D13 -115° (c = 0.373 in ethanol)
Dioscorea Dioscorine Diosgenin Diosmin Diosphenol