Aniline 2,4 Disulphonic Acid

Aniline 2,4-disulfonic acid (A2,4-DSA) is an organic compound that is formed by the sulfonation of aniline, which is an amine derived from benzene. It is a white crystalline solid that is soluble in water and has a strong acidic character. It is used as a intermediate in the production of certain dyes and pigments, as well as in the synthesis of other chemicals.