1,6-Dibromo-1,6-dideoxy-3,4-isopropylidene-D-mannitol 17107-32-3 3,4-Isopropylidene-1,6-dibromo-1,6-dideoxy-D-mannitol BRN 5505653 Ip-Dbm Isopropylidene-dbm MANNITOL, 1,6-DIBROMO-1,6-DIDEOXY-3,4-ISOPROPYLIDENE-, (D)-