Nitro blue tetrazolium is a chemical compound composed of two tetrazole moieties. It is used in immunology for sensitive detection of alkaline phosphatase (with BCIP). NBT serves as the oxidant and BCIP is the AP-substrate (and gives also dark blue dye).

CAS：298-83-9
中文别名：硝基BT;氯化硝基四氮唑蓝;氯化硝基四氮唑蓝(NBT);NBT/氮四唑蓝;硝基蓝四氮唑;氯化硝基四氮唑蓝 NBT;
英文别名：Nitrotetrazolium Blue chloride;Nitro Blue Tetrazolium;Nitro-Tb;Nitro Blue Tetrazolium Chloride monohydrate;Nitroterazoium blue chlorid;NBT Vials;Nitro Blue Tetrazolium dichloride;Nitrotetrazolium blue chloride;Nitrotetrazolium Blue chloride (NBT);NITRO BT;NBTMF;NBT CHLORIDE;P-NBT;NBT;nitrotetrazoliumbt;nitro blue tetrazolium chloride;3,3\'-(3,3\'-Dimethoxy-4,4\'-biphenylene)bis[2-(4-nitrophenyl)-5-phenyl-2H-tetrazolium chloride];2,2\'-Di-p-nitrophenyl-5,5\'-diphenyl-(3,3\'-dimethoxy)-4,4\'-bisphenyleneditetrazolium Chloride;p-Nitro-Blue tetrazolium chloride;DITETRAZOLIUM DYE;Nitro Blue Tetrazolium Chloride;
分子式：C40H30Cl2N10O6
分子量：817.636
精确质量：816.173
Psa：179.28
Logp：1.2904

UNII：X44P41F7ZK

外观与性状：黄色晶体
熔点：200ºC
稳定性：Stable, but store cold.
储存条件：2-8ºC

RTECS号：XF8045000
安全说明：S36
危险类别码：R22
WGK Germany：3
海关编码：32041900
危险品标志：Xn
危险性防范说明：P280; P305 + P351 + P338
信号词：Danger
危险性描述：H318
危险标志：GHS05