I3MT-3 (S3541-GRP)

I3MT-3 (HMPSNE, compound 3) is a potent, selective, and cell-membrane permeable inhibitor of 3-mercaptopyruvate sulfurtransferase (3MST) with IC50 of 2.7 μM. I3MT-3 targets a persulfurated cysteine residue located in the active site of 3MST.