2-(2-Methoxy-4-nitrophenyl)-3-(4-nitro

This listing (CAS 193149-74-5), whose truncated title reads '2-(2-Methoxy-4-nitrophenyl)-3-(4-nitro...', is fully identified in the supplier's data as 2-(2-Methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium sodium salt, also known as water-soluble tetrazolium salt WST-8 (molecular formula C20H14N6O11S2·Na, molecular weight 600.47), used in cell-viability assay kits. It is manufactured directly by Chem-Stone (Guangzhou) Co., Ltd. and distributed across North America, Europe, Asia, Australasia, the Middle East, and Africa.