109545-43-9 Benzamide, 4-((4-azido-3-iodophenyl)azo)-N-(3-((2,5-dioxo-1-pyrrolidinyl)oxy)-3-oxopropyl)- Denny-jaffe reagent N-((3-((4-((4-Azido-3-iodophenyl)azo)benzoyl)amino)propanoyl)oxy)succinimide