Patent ID: 7029501
Filing Date: 2006-04-18
Classification: A61K,A61Q

Abstract:
1. A hair dye composition comprising a dissociative direct dye represented by the following formula (1) or a salt thereof: wherein, R 1 , R 2 , R 3 and R 4 each independently represents a hydrogen atom or a substituent, X represents a hydroxyl group or —NHSO 2 R 5 , in which R 5 represents an alkyl, aryl or heterocyclic group, A represents a group represented by any one of the below-described formulae which group may have one or more substituents: wherein * is a position bonding to the nitrogen atom in formula (1), in formula (Cp-1), R in formula (Cp-2), R in formula (Cp-3), R in formula (Cp-4), R in formula (Cp-5), R in formula (Cp-6), R in formula (Cp-8), R in formula (Cp-9), R wherein R in formula (Cp-10), R in formula (Cp-11), R in formula (Cp-12), R