7-nitro-2,1,3-thiadiazole benzimidazole derivatives, as well as the keratin fibers for stain that contained these compounds - and 7-nitro-2,1,3-oxadiazole benzoxadiazole

摘要

Represented by the following general formula (I) 4- nitro-2,1,3-oxadiazole benzoxadiazole object of the present invention, - derivatives and 4-nitro-2,1,3-thiadiazole benzimidazole derivatives: [Formula 1] , As well as the dyeing agent for keratin fibers containing these compounds.