2,5-Pyrrolidinedione, 1-((4-azidobenzoyl)oxy)- 4-Azidobenzoic acid N-hydroxysuccinimide ester 4-Azidobenzoyloxysuccinimide 53053-08-0 HSAB Hydroxysuccinimidyl-p-azidobenzoate N-Hydroxysuccinimidyl-4-azidobenzoate NSC 329704 hydroxysuccinimidyl-4-azidobenzoate