P-Anisidine -3 – Sulfonic acid, its another name is 2-Amino-5-methoxybenzenesulfonic acid, CAS NO:(132244-33-2),  Molecular formular: C₇H₈NO₄S.This product is white crystal, slightly soluble in cold water, soluble in hot water, soluble in organic solvents, such as chloroform, ethanol and so on, soluble in alkaline solution, It easy resolves in strong acid and alkali at high temperatures encountered, it is stability at dry condition, and had slight irritant smell.

Usage
P-Anisidine -3 – Sulfonic acid has a wide range of usage,It can be used as dye and medicine compund raw materials.It is mainly used in the manufacture of direct red 8 #, direct red 224 #, direct red 243 #, direct blended bright red D-GIN, reactive red 222 #, reactive Red 33 #, reactive red 43 #. It also can be used as pharmaceutical intermediate in the chemical industry.

Product Specification and Standard