Resazurin (7-Hydroxy-3H-phenoxazin-3-one 10-oxide) is a blue dye, itself weakly fluorescent until it is irreversibly reduced to the pink colored and highly red fluorescent resorufin. It is used as an oxidation-reduction indicator in cell viability assays for bacteria and mammalian cells, and for measuring aerobic respiration and exchange with the hyporheic zone in streams. Usually it is available commercially as the sodium salt.

CAS：62758-13-8
中文别名：7-羟基-3-羰基-10-氧化-三氢吩恶嗪钠盐;刃天青钠;树脂天青;天兰化钠;刃石青;树脂酚天青;
英文别名：7-sodiooxy-3H-phenoxazin-3-one 10-oxide;REZAZURIN;DIAZORESORCINOL;RESAZURIN NA-SALT;Resazurine;SODIUM RESAZURIN;RESAZOIN;RESAZURIN SODIUM;RESAZURINE;7-Hydroxy-10-oxy-phenoxazin-3-on,Natrium-Verbindung;REISHIMUSHROOM.P.E;ResazurinGr;7-hydroxy-10-oxy-phenoxazin-3-one,sodium-compound;7-hydroxy-3H-phenoxazin-3-one 10-oxide sodium salt;
分子式：C12H6NNaO4
分子量：251.17
精确质量：251.019
Psa：78.73
Logp：2.4701

MDL号：MFCD00005036

外观与性状：暗红色晶体带有一种绿色光泽
沸点：477.2ºC at 760 mmHg
熔点：>200ºC
闪点：242.4ºC
水溶解性：soluble
稳定性：Stable. Incompatible with strong oxidizing agents.
储存条件：Store at RT.

安全说明：S26-S36/37/39
危险类别码：R22; R36/37/38
WGK Germany：3
海关编码：2934999090
危险品标志：Xn

用途
指示剂。