BODIPY-TS (Thiol-green 2) is a fast response and thiol-specific turn-on probe. BODIPY-TS utilizes the thiosulfonate scaffold as a thiol recognition unit. BODIPY-TS has low toxicity, and features high selectivity, low detection limit, and quantitative reaction to thiols[1]. Ex: 490 nM; Em: 515 nM.
[1]. Chunpo Ge,et al. A thiol-thiosulfonate reaction providing a novel strategy for turn-on thiol sensing. Chem Commun (Camb). 2015 Oct 14;51(80):14913-6.