2,5-Pyrrolidinedione, 1-(3-(4-hydroxy-3-(iodo-125I)phenyl)-1-oxopropoxy)- 65114-37-6 Bolton-Hunter reagent Iodo-p-hydroxyphenylpropionic acid N-hydroxysuccinimide ester N-Hydroxysuccinimide iodo-p-hydroxyphenylpropionate