It is a new hypervalent iodine reagent derived from the 1,2-dihydro-3,3-dimethyl-1,2-benziodoxole scaffold for linking a UV absorber moiety as functional group to the tetrafluoroethyl bridge unit. The high reactivity of this compound towards thiols has been exploited for the selective tagging of several targets with the UV chromophore coumarin, including e.g. glutathione.
Synthesis of quaternary α-perfluoroalkyl lactams via electrophilic perfluoroalkylation. 
Hypervalent Iodine Reagents: Thiol Derivatization with a Tetrafluoroethoxy Coumarin Residue for UV Absorbance Recognition. 
 D.Katayew, J.Václavík, F. Brüning, B. Commare, A. Togni, Chem. Commun., 2016, 52(21), pp 4049-4052.
 B. Commare, A. Togni, Helv. Chim., 2017,100(5).
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