alpha-Hederin

Title: a-Hederin
CAS Registry Number: 27013-91-8
Additional Names: Helixin (the saponin)
Molecular Formula: C41H66O12
Molecular Weight: 750.96
Percent Composition: C 65.57%, H 8.86%, O 25.57%
Literature References: Isoln from ivy leaves (Hedera helix L., Araliaceae): van der Haar, Arch. Pharm. 250, 424 (1912); 251, 632, 650; idem, Biochem. Z. 76, 335 (1916); idem, Ber. 54, 3142 (1921). Isoln and structure: Tschesche et al., Z. Naturforsch. 20b, 708 (1965).
Properties: Precipitated from ethanol by addition of ether, mp 256-259°. [a]D20 +14.5° (c = 0.92 in methanol).
Melting point: mp 256-259°
Optical Rotation: [a]D20 +14.5° (c = 0.92 in methanol)
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