1-((6-((4-Azido-2-nitrophenyl)amino)-1-oxohexyl)oxy)-2,5-dioxo-3-pyrrolidinesulfonic acid 102568-43-4 3-Pyrrolidinesulfonic acid, 1-((6-((4-azido-2-nitrophenyl)amino)-1-oxohexyl)oxy)-2,5-dioxo- Ssanpah Sulfo sanpah Sulfo-sanpah Sulfosuccinimidyl 6-((4-azido-2-nitrophenyl)amino)hexanoate Sulfosuccinimidyl 6-(4'-azido-2'-nitrophenylamino)hexanoate