PARA NITRO ANILINE O-SULFONIC ACID is used in different industries and also for the formulation of cosmetics. Its maximum purity level is 93%. Its iron content is less than 15 PPM. It contains less than 0.02% insoluble matter. This acid has been produced under controlled environment by using quality approved raw materials. It has been tested on the basis of its storage life, composition, utility, chemical attributes and possible toxin level. We offer this acid at reasonable price.