Title: Dioscin
CAS Registry Number: 19057-60-4
CAS Name: (25
R)-Spirost-5-en-3b-yl
O-6-deoxy-a-L-mannopyranosyl-(1?2)-
O-[6-deoxy-a-L-mannopyranosyl-(1?4)]-b-D-glucopyranoside
Synonyms: 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)