N-(p-Tosyl)-GPR-pNAacetate 是凝血酶的比色底物，可作为凝血酶活性的测量。

N-[2-nitro-4-(trifluoromethyl)phenyl]piperazine is a biologically active compound belonging to the piperazine group. It is an important synthetic intermediate used in the preparation of a wide range of drugs, agrochemicals and other chemicals. It is considered an inhibitor of certain enzymes involved in drug metabolism, such as cytochrome P450 enzymes, and has also been shown to have anti-inflammatory and antitumor effects.

NBD-Cl 是一种非荧光化合物，与氨基或硫醇基团反应后会产生高荧光。