Copper, [[2,2'-(1,2-dimethyl-1,2-ethanediylidene)bis[N-phenylhydrazinecarbothioamidato-κN2,κS]](2-)]-, (SP-4-2)-

Biological Activity

CuATSP is a CuATSM analog with >10-fold enhanced ferropotosis inhibitory potency (CuATSP/CuATSM IC50 against 150 nM RSL3-induced ferroptosis = 8.5/160 nM using Pfa1 mouse embryonic fibroblasts,16/170 nM using HT-22 mouse hippocampal cells). CuATSP and CuATSM exert their radical-trapping antioxidant (RTA) and (phospho)lipid peroxidation inhibitory potency via an initial reversible addition of a peroxyl radical to the bis(thiosemicarbazone) ligand, followed by a subsequent H-atom transfer (HAT) th at drives the reaction forward.