Package: 25kg 50kg drum or bag

Uses : Dye intermediates;Organic synthesis:

Molecular Structure:

Product description: What is the chemical of 4,4'-Diamino-Diphenylamine-2-Sulfonic Acid ? Appearance: White crystalline powder or off white powder ; Assay: 99% min by HPLC ; IR Identity: conform to standard ; HNMR： conform to standard ; carbon spectrum: conform to standard ; Water by K. F.:0.5% max or as per the customer’s request ; Loss on drying:0.5% max. or as per the customer’s request ; Usage：Dye intermediates: widely used in the synthesis of azo dyes, as key intermediates involved in color reactions Organic synthesis: used for preparing other organic compounds containing sulfonic acid groups production method Sodium ortho chloronitrobenzene sulfonate is condensed with acetaminophen, then reduced with iron powder, neutralized, hydrolyzed with liquid alkali, and acidified to obtain the product