Symuler Brilliant Carmine 6B 303S 4B acid.Ca 5281-04-9 Dainippon Ink and Chemicals, Incorporated (DIC) Color pigment & dye Inks INKS >> Lithographic and Offset Inks 4B acid. Ca. Used in metal, porous and offset inks. 4B acid. Ca. Used in metal, porous and offset inks.