AZO DYE, OCULAR LENS MATERIAL, METHOD FOR PRODUCING OCULAR LENS MATERIAL, AND OCULAR LENS

摘要

An azo colorant being superior in elution resistance from an ophthalmic lens material and miscibility with a monomer for an ophthalmic lens, and capable of coloring with various hues is provided. Also provided are an ophthalmic lens material that achieves reduced elution of a colorant and is uniformly colored, a method for producing an ophthalmic lens material, and an ophthalmic lens. A monoazo colorant for coloring an ophthalmic lens represented by the following general formula (1). The ophthalmic lens material of the present invention is produced from a composition containing the monoazo colorant, and a monomer for an ophthalmic lens having a polymerizable group, and thus contains a copolymer of the monoazo colorant and the monomer for an ophthalmic lens.