Not Less Than - 95%
Methyl L-xylo-hex-2-ulosonate; Sodium Ascorbate Impurity D (EP/BP); Methyl L-sorbosonate; Methyl (3S,4R,5S)-3,4,5,6-tetrahydroxy-2-oxohexanoate; L-xylo-Hexulosonic acid, methyl ester; Methyl L-xylo-2-hexulosonate; 2-keto-L-Gulonic acid methyl ester; Methyl 2-keto-L-gulonate; Methyl L-xylo-hexulosonate