2,3-O-Isopropylidene-L-gulonolactone, 2,3-O-Isopropylidene-L-gulono-1,4-lactone, 2,3-O-(1-Methylethylidene)-L-gulonic Acid |A-Lactone, 94840-08-1 (HCID 14106428)|Huagongshe