C.I.BASIC BLUE 26;CAS#2580-56-5 Product Name:Victoria Blue B C.I.No.:C.I.Basic Blue 26 Strength:110%±2 or 100%±2 Insolubles:0.5%Max Appearance:Dark Brown Crystal PH:4-6 Usage: Carbon paper,paper,ink,printing inks and textile dyeing. VICTORIA BLUE B dyestuff