L-Gulonic acid,5,6-O-(1-methylethylidene)-, g-lactone

5,6-o-isopropylidene-l-gulonic acid γ-lactone ; 5,6-o-isopropylidene-l-gulonicacid-1,4-lactone ; 5,6-o-isopropylidene-l-gulonic acid-1,4-lactone ,98% ; 5,6-o-isopropylidene-l-gulonic acid gamma-lactone ; 5,6-0-isopropylidene-l-gulono-1,4-lactone ; 5,6-o-isopropylidene-l-gulonic acid gamma-lactone (l-gulonolactone acetonide) ; l-gulonolactone acetonide ; 5,6-o-isopropylidene-l-gulono-1,4-lactone