Title: Verbascose
CAS Registry Number: 546-62-3
CAS Name: b-D-Fructofuranosyl O-a-D-galactopyranosyl-(1®6)-O-a-D-galactopyranosyl(1®6)-O-a-D-galactopyranosyl-(1®6)-a-D-glucopyranoside
Additional Names: O-a-D-galactopyranosyl-(1®6)-[O-a-D-galactopyranosyl-(1®6)-]2-O-a-D-glucopyranosyl-(1®2)-b-D-fructofuranoside
Molecular Formula: C30H52O26
Molecular Weight: 828.72
Percent Composition: C 43.48%, H 6.32%, O 50.20%
Literature References: Oligosaccharide isolated from roots of mullein Verbascum thapsus L., Scrophulariaceae: Bourquelot, Bridel, Compt. Rend. 151, 760 (1910); from birch wood, Betula verrucosa Ehrh., Betulaceae: Lindberg, Selleby, Acta Chem. Scand. 12, 1512 (1958). Structure: Wickström et al., Bull. Soc. Chim. Fr. 1956, 827. Review: D. French "The Raffinose Family of Oligosaccharides" in Adv. Carbohydr. Chem. 9, 180-181 (1954).
Properties: Needles, mp 219-220°, mp 253°. [a]D20 +170° (water); [a]D25 +146° (c = 2.1 in water).
Melting point: mp 219-220°; mp 253°
Optical Rotation: [a]D20 +170° (water); [a]D25 +146° (c = 2.1 in water) |