1184-43-6 2H-Tetrazolium, 3,3'-(3,3'-dimethoxy-4,4'-biphenylylene)bis[2,5-bis(p-nitrophenyl)-, dichloride 2H-Tetrazolium, 3,3'-(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[2,5-bis(4-nitrophenyl)-, dichloride Blue p-nitrotetrazolium chloride NSC121208 TNBT Tetranitro Blue Tetrazolium Tetranitro blue tetrazolium chloride Tetranitro-BT Tetranitrotetrazolium blue