Synonyms: glucofuranuronic acid, 1,2-o-isopropylidene-, .gamma.-lactone, .alpha.-d- (8ci);.alpha.-d-glucofuranuronic acid, 1,2-o-(1-methylethylidene)-, .gamma.-lactone (9ci);1,2-O-Isopropylidene-a-D-glucofuranurono-6,3-lactone;1,2-O-(1-Methylethylidene)-α-D-glucofuranuronic Acid -Lactone;