INT or 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium is a popularly used tetrazolium salt (usually chloride), similar to tetrazolium chloride that on reduction produces a red formazan dye that can be used for quantitative redox assays.

CAS：146-68-9
中文别名：碘硝基四唑紫/INT;碘硝基氯化四氮唑;碘硝基氯化四氮唑蓝;2-(4-碘苯基)-3-(4-硝基苯基)-5-苯基四唑氯;碘硝基四氮唑;(INT)碘硝基四唑紫;
英文别名：2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-3H-tetrazol-2-ium chloride;INT CHLORIDE;P-IODONITROTETRAZOLIUM VIOLET;IODONITROTETRAZOLIUM CHLORIDE;Iodonitrotetrazolium purple;2-(4-idophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazoliumchloride;2-(4-iodo-phenyl)-3-(4-nitro-phenyl)-5-phenyl-tetrazolium,chloride;4-IODONITROTETRAZOLIUM VIOLET;IODONITROTETRAZOLIUM VIOLET;Iodonitrotetrazolium chloride;2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazoliuM Chloride;IODONITROTETRAZOLIUM;2-(p-iodophenyl)-3(p-nitrophenyl)-5-phenyl tetrazolium chloride;INT;2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium Chloride. Iodonitrotetrazolium chloride;2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride;INT DYE;2-(4-Jod-phenyl)-3-(4-nitro-phenyl)-5-phenyl-tetrazolium,Chlorid;Iodonitrotetrazolium chloride (INT);IntA.R.;
分子式：C19H13ClIN5O2
分子量：505.696
精确质量：504.98
Psa：80.41
Logp：1.251

MDL号：MFCD00011961
EINECS号：205-676-2
BRN号：4093224
PubChem号：24896138

外观与性状：略黄色粉末
沸点：567.5ºC at 760 mmHg
熔点：240°C (dec.)(lit.)
闪点：297ºC
水溶解性：soluble
稳定性：Stable. Incompatible with strong oxidizing agents.
储存条件：Store at 2-8ºC
蒸汽压：6.76E-13mmHg at 25°C

安全说明：S36/37-S36/37/39-S26-S22-S16
WGK Germany：3
危险类别码：R11; R20/21/22; R36/37/38
海关编码：2933990090
危险品运输编码：2811
危险类别：6.1
包装等级：III
危险品标志：F; Xn
危险标志：GHS07, GHS08
危险性描述：H302; H371
危险性防范说明：P260
信号词：Warning

用途
病理化学研究,用作细菌染色剂。皮质甾酮、氧化还原酶(如乳酸及琥珀酸脱氢酶)的定量分析。