
Acid Yellow 73 Salt Free is a quality water soluble dye designed for marker pen inks needing brilliant fluorescent yellow shades and consistent writing performance. The salt-free formulation helps to improve the purity of the ink, reduce build-up of residue and ensure smooth ink flow in modern marker systems. Due to its strong fluorescence, excellent solubility and stable formulation compatibility, this dye has been widely used in highlighters, sketch markers and stationery inks.