TNJ Chemical is a China factory (supplier) of 4-Aminoazobenzene-3,4'-disulfonic acid CAS 101-50-8, founded in 2001. Locaed in Feidong chemical park, our plant covers an area of 200 acres, with 180 employees and 16 R and D personnel. Our products are widely used in medicine, food, cosmetics and other fields, and exported to all over the world. Our products are favored by customers because of stable quality, reasonable price and good service. If you want to buy 4-Aminoazobenzene-3,4'-disulfonic acid CAS 101-50-8 or consult product information, please contact sales@tnjchem.com