TECHNICAL FIELD The present invention relates to a dye for dyeing hair, which comprises a compound represented by the following general formula (I), a hair dye composition containing it, and a hair dyeing method.Embedded image Wherein R1, R2And R3Each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, or a linear or branched alkoxy group having 1 to 6 carbon atoms, An-Represents an inorganic anion or an organic anion. ]本発明は、下記一般式(I)で表される化合物を含む、染毛用染料及びそれを含む染毛用組成物、並びに染毛方法に関する。【化1】[式中、R1、R2及びR3は、それぞれ独立に、水素原子、直鎖若しくは分岐の炭素数1~6のアルキル基、または直鎖若しくは分岐の炭素数1~6のアルコキシ基を示し、An-は無機陰イオン又は有機陰イオンを示す。]
