Sell O-Anisidine-4-Sulfonic Acid - tk-chemicals-012

O-Anisidine-4-Sulfonic Acid  - tk-chemicals-012 You May Also Be Interested In: acid brown sulfonic acid
Product name: O-Anisidine-4-Sulfonic Acid
Appearance:Crystal in rice white (cake)
Content:>=96%
Purity:>=99%(HPLC)
Use: Direct red 83,89, Acid brown 83,86 etc. dyes-intermediate