Dynamic studies of transnitrosation of thiols of biological importance by the nitrosated 4,4',4'',4'''-tetrasulfophthalocyaninecobaltate(III) anion in aqueous solution.

The kinetics of interaction of Co(III)TSPcNO (TSPc = 4,4',4'',4'''-tetrasulfophthalocyanine) with various thiols of biological relevance, e.g., reduced glutathione (GSH), captopril (CapSH), N-acetyl-L-cysteine (NALC), and L-cysteine ethyl ester (LCEE) have been investigated spectrophotometrically.