Isoarundinin I is a stilbene compound that can be isolated from Arundinu bambusifolia.

Dansyl chloride reacts with primary amino groups in both aliphatic and aromatic amines to produce stable blue- or blue-green-fluorescent sulfonamide adducts. It is widely used to modify amino acids, specifically, protein sequencing and amino acid analysis.

N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride is an inhibitor of trypsin-like protease.