Miglustat Impurity B

Chemical Name: 1,2-O-Isopropylidene-5-keto-α-D-glucose ; 2-hydroxy-1-((3aR,5S,6R,6aR)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethan-1-one