The molecule is a monosaccharide derivative that is beta-D-glucopyranose having a methyl group at the 3-position and a 1-carboxyethylidene group masking the 4-and 6-positions. It derives from a beta-D-glucose.
(2S,4aR,6R,7R,8R,8aR)-6,7-dihydroxy-8-methoxy-2-methyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxine-2-carboxylic acid