1. P-Anisidine -3-Sulfonic acid

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
Apperance :White/Cream Crystal
Content:98%Min
Moisture:0.5%Max

2.O-Anisidine-4-Sulfonic acid

O-Anisidine-4-Sulfonic acid, another name is 3-amino-4-methoxy-Benzenesulfonic acid and 2-Anisidine-5-Sulfonic acid, CAS NO:(98-42-0), Molecular formular: C7H9NO4S,The product is white crystalline solid, no irritating smell, It can be dissolved in sodium carbonate, water and ethanol.It is  intermediate of reactive dye.

Usage:
O-Anisidine-4-Sulfonic acid has a wide range of usage, It can be used as dye and medicine compund raw materials, It is mainly used as intermediate of  direct red 83/89 and acid brown 83/86, It also can be used as pharmaceutical intermediate in the chemical industry.

Apperance:white crystalline solid(Dry Product)
Content:99%Min
Purity: 99%Min