Product Description: 7-Methyl-6-mercaptopurine (Compound 4) is a purine derivative and a substrate for thiopurine methyltransferase (TPMT) with Km and Vmax values of 231 μM and 2340 U/mg protein, respectively[1].
Formula: C6H6N4S
References: [1]Deininger M, et al. Purine substrates for human thiopurine methyltransferase. Biochem Pharmacol. 1994;48(11):2135-2138.