Quick view View Item Fast Blue B Salt Dye content, 10G Fast Blue B Salt Dye content ~95 %, 10G Synonym: o-Dianisidine bis(diazotized) zinc double salt, Azoic Diazo No. 48, DBB, Diazo Blue B, Naphthanil Diazo Blue B CAS Number 14263-94-6 Linear Formula C14H12N4O2Cl2 ·... Weight: 1.00 LBS View Item Quick view Qty in Cart: 0 Price: Subtotal: