116502-73-9 2,2-Bis(4-((2,5-dioxo-3-sulfo-1-pyrrolidinyl)oxy)-4-oxobutyl)-4,4-dimethyl-3-oxazolidinyloxy 3-Oxazolidinyloxy, 2,2-bis(4-((2,5-dioxo-3-sulfo-1-pyrrolidinyl)oxy)-4-oxobutyl)-4,4-dimethyl- BSSDA Bis(sulfo-N-succinimidyl) doxyl-2-spiro-5'-azelate