Sudan II(苏丹红Ⅱ、溶剂橙7,色号:12140,C.I. 12140)是一种脂溶性染料,属于偶氮染料。它主要用于染色冷冻切片中的甘油三酯以及石蜡切片上一些蛋白质结合的脂质和脂蛋白。
化学性质苏丹红Ⅱ为棕红色结晶,可溶于甲醇、乙醇、DMSO等有机溶剂,并且来源于合成染料。
用途有毒物质。
可燃性危险特性可燃,燃烧时会产生有毒氮氧化物气体。
储运特性库房应保持低温、通风且干燥的环境。
灭火剂用水、二氧化碳或干粉灭火器以及砂土进行扑灭。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-(2,4-dimethylphenylazo)-2-aminonaphthalene | 52458-03-4 | C18H17N3 | 275.353 |
In this paper, a micro-fluidic optimized process for the continuous flow synthesis of azo compounds is presented. The continuous flow synthesis of Sudan II azo dye was used as a model reaction for the study. At found optimal azo coupling reaction temperature and pH an investigation of the optimum flow rates of the reactants for the diazotization and azo coupling reactions in Little Things Factory-MS microreactors was performed. A conversion of 98% was achieved in approximately 2.4 minutes and a small library of azo compounds was thus generated under these reaction conditions from couplers with aminated or hydroxylated aromatic systems. The scaled up synthesis of these compounds in PTFE tubing (i.d. 1.5 mm) was also investigated, where good reaction conversions ranging between 66–91% were attained.