The molecule is an organosulfonate salt that is the tetrakis(p-toluenesulfonate) salt of meso-tetrakis(N-methyl-4-pyridyl)porphine. It has a role as an EC 2.7.7.49 (RNA-directed DNA polymerase) inhibitor, an angiogenesis inhibitor, an antineoplastic agent and a photosensitizing agent. It contains a meso-tetrakis(N-methyl-4-pyridyl)porphine(4+).
4-methylbenzenesulfonate;5,10,15,20-tetrakis(1-methylpyridin-1-ium-4-yl)-21,23-dihydroporphyrin