Cy3 NHS ester是含N-羟基琥珀酰亚胺（N-Hydroxysuccinimide）活化基团的Cy3，可直接与生化分子上的氨基（-NH2）反应形成稳定的酰胺键，主要是伯胺。Ex/Em(nm)=550/570。(Cy3 NHS ester is a Cy3 containing the N-Hydroxysuccinimide activating group， which can react directly with the amino group (-NH2) on biochemical molecules to form stable amide bonds， mainly primary amines. Ex/Em(nm)=550/570.)
