1,2:5,6-Dianhydrodulcitol 1,2:5,6-Dianhydrogalactitol 1,2:5,6-Diepoxydulcitol 23261-20-3 5,6-Diepoxydulcitol DAD DAG DIANHYDRODULCITOL Dianhydrogalactitol Dulcitol diepoxide Galactitol, 1,2:5,6-dianhydro- NSC 132313 NSC132313