1,2;3,4-di-O-Isopropylidene-beta-D-arabinopyranose

1,2:3,4-di-o-isopropylidene-beta-d-arabinopyranose ; 1,2:3,4-di-o-isopropylidene-b-d-arabinopyranose ; b-d-arabinopyranose,1,2:3,4-bis-o-(1-methylethylidene)- ; 3,4-di-o-isopropylidene-beta-d-arabinopyranose ; 1,2:3,4-di-o-isopropylidene-ss-d-arabinpyranose ; 1,2:3,4-di-o-isopropylidene-β-d-arabinopyranose ; 5h-bis[1,3]dioxolo[4,5-b:4',5'-d]pyran, b-d-arabinopyranosederiv. ; 1,2 ; arabinopyranose,1,2:3,4-di-o-isopropylidene-, b-d- (8ci)