125161-47-9 3-O-Butanoyl-1,2-O-isopropylidene-alpha-D-glucofuranose Esterbut-3 Mag-3BUT Monoacetone glucose 3-butyrate Monobut-3 alpha-D-Glucofuranose, 1,2-O-(1-methylethylidene)-, 3-butanoate