sulfanilic acid 99%min appearance: white powder aniline%<=0.01 MAX insoluble%<= ... .485 Uses:sulfanilic acid is an important intermediate of acid orange II, acid bright yellow 2G, acid mordant yellow brown 4G, acid mordant dark yellow ... dyeing and printing, such as dissolving salt B, fluorescent bleaching agent BG, BBU, anti-dust salt, it can be used in bactericide ...