Patent ID: 7306631
Filing Date: 2007-12-11
Classification: A61K,A61Q

Abstract:
1. A keratin dyeing composition comprising: (A) a medium suitable for dyeing; and (B) one or more bicyclic 5-6 heteroaromatic keratin dyeing compounds with one ring junction nitrogen and one or two extra heteroatoms wherein said bicyclic 5-6 heteroaromatic keratin dyeing compound with one ring junction nitrogen and one or two extra heteroatoms is an unsubstituted or substituted member selected from the group consisting of H-pyrrolo[1,2-b]pyridazine, H-pyrrolo[1,2-f]pyrimidine, H-pyrrolo[1,2-a]pyrazine, H-pyrrolo[1,2-a]pyrimidine, H-imidazo[1,5-a]pyridine, pyrazolo[1,5-b]pyridazine, pyrazolo[1,5-f]pyrimidine, pyrazolo[1,5-a]pyrazine, imidazo[1,5-b]pyridazine, imidazo[1,5-f]pyrimidine, imidazo[1,5-a]pyrazine, imidazo[1,5-a]pyrimidine, imidazo[1,2-b]pyridazine, imidazo[1,2-f]pyrimidine, imidazo[1,2-a]pyrazine, and imidazo [1,2-a]pyrimidine.