137756-28-6 7-Nitrobenz-2-oxa-1,3-diazole desferrioxamine B Butanediamide, N'(5-((4-((5-(acetylhydroxyamino)pentyl)amino)-1,4-dioxobutyl)hydroxyamino)pentyl)-N-hydroxy-N-(5-((7-nitro-4-benzofuranyl)amino)pentyl)- Nbd-dfo