槐糖, Sophorose

Title: Sophorose

CAS Registry Number: 20880-64-2

CAS Name: 2-O-b-D-Glucopyranosyl-a-D-glucose

Molecular Formula: C12H22O11

Molecular Weight: 342.30

Percent Composition: C 42.11%, H 6.48%, O 51.41%

Literature References: From pods of Sophora japonica L., Leguminosae: Rebaté, Bull. Soc. Chim. Fr. 7, 565 (1940); Clancy, J. Chem. Soc. 1960, 4213; Clancy in Methods in Carbohydrate Chemistry vol. I, R. L. Whistler, M. L. Wolfrom, Eds. (Academic Press, New York, 1962) pp 345-349. Structure and synthesis: Coxon, Fletcher, J. Org. Chem. 26, 2892 (1961); Koeppen, Carbohydr. Res. 7, 410 (1968). Crystal structure: J. Ohanessian et al., Acta Crystallogr. B34, 3666 (1978).

Derivative Type: Monohydrate

Properties: Needles from 80% aq methanol, mp 196-198°. [a]D18 +19° (c = 1.2 in water).

Melting point: mp 196-198°

Optical Rotation: [a]D18 +19° (c = 1.2 in water)

Derivative Type: Octa-O-acetyl-b-sophorose

Molecular Formula: C28H38O19

Molecular Weight: 678.59

Percent Composition: C 49.56%, H 5.64%, O 44.80%

Properties: Needles from ethanol, mp 193-194°. [a]D18 -3.2° (c = 2.5 in chloroform).

Melting point: mp 193-194°

Optical Rotation: [a]D18 -3.2° (c = 2.5 in chloroform)

COA:

Product name: Sophorose monohydrate

CAS: 20880-64-2    M.F.: C₁₂H₂₂O₁₁.H₂O  M.W.: 342.3   Batch No: 20090828     Quantity: 5mg from 25mg