XANTHENE DYE, COLORING COMPOSITION CONTAINING THE SAME, COLORANT FOR COLOR FILTER AND COLOR FILTER

摘要

(Project) An object of the present invention is to provide a xanthene dye excellent in solubility, clarity and heat resistance. To provide a coloring composition containing the pigment, a colorant for color filters, and a color filter. (Solution means) A xanthene dye represented by the following general formula (1). [In formula (1), Xn 1 and Xn 2 each independently represent a group represented by formula (2), Ar is an aromatic hydrocarbon group or a heterocyclic group, An is an anion, a is an integer of 1 to 3, b is The integer of 0-6 is shown. When b is 2 or more, plural Ans may be the same or different. R 1 to R 4 each independently represent H, an alkyl group, or an aromatic hydrocarbon group. R 5 and R 6 each independently represent H, a halogen atom, an alkyl group, or an aromatic hydrocarbon group, and R 1 to R 6 may be adjacent to each other to form a ring. The broken line indicates the bonding portion with Ar.]