p-IODONITROTETRAZOLIUM FORMAZANIodonitrotetrazolium violet-formazanINT Formazan1-(4-Iodophenyl)-5-(4-nitrophenyl)-3-phenylformazan1-(4-Iodophenyl)-5-(4-nitrophenyl)-3-phenylformazanIodonitrotetrazoliumviolet-formazanIodonitrotetrazolium violet formazanIodonitrotetrazolium formazan