6-oxo-6-(dibenzo[b,f]azacyclooct-4-yn-1-yl)-caproic acid sulfo-N-hydroxysuccinimide ester, sodium salt
Carboxytetramethylrhodamine, N-hydroxysuccinimide ester in dimethyl sulfoxide (DMSO)
N-(5-carboxypentyl)-2-[(1,4-dihydro-1- methylquinolin-4-ylidene)methyl]benzothiazol-3-ium chloride N-hydroxysuccinimide ester