2,2′-bis(4-Nitrophenyl)-5,5′-diphenyl-3,3′-(3,3′-dimethoxy-4,4′-diphenylene)ditetrazolium chlorideNitro BT3,3′-(3,3′-Dimethoxy-4,4′-biphenylene)bis[2-(4-nitrophenyl)-5-phenyl-2H-tetrazolium chloride]p-Nitrotetrazolium blueNBTp-Nitro-Blue tetrazolium chlorideNitrotetrazolium Blue chloride