Nutan Dye Chem manufactures O-Anisidine Para Sulfonic Acid in Moist Crystal Form. Dye Chem supplies dye intermediates & azoic compound. O-Anisidine Para Sulfonic Acid in Moist Crystal Form appears in light pink to white color. O-Anisidine Para Sulfonic Acid in Moist Crystal Form is a clear solution which is soluble in dilute alkaline. The nature of the material of this chemical is acidic. It is used in dyes manufacturing. This chemical is supplied in free acid form.