[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][O][=NH1+1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][N].[C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][O][=NH1+1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][N].[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=N][C][=N][C][=Branch2][Branch1][=Branch1][=N][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Branch1][Ring2][N-1][Ring1][=Branch2][N][=C][C][=C][Branch1][P][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][=Branch1][Ring2][=N][Ring1][=N][N][=C][Ring2][Ring2][C][N-1][Ring2][Ring1][S][C][=C][Ring2][Ring1][S][C][=C][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[Cu]"}, {"from": "gpt", "value": "The molecule is a guanidinium salt that is the bis[1,3-di(2-tolyl)guanidinium] salt of a copper phthalocyanine-disulfonic acid. A dye that is soluble in alcohols and phospholipids and is used to demonstrate myelin. It has a role as a fluorochrome and a histological dye. It is a guanidinium salt and an organosulfonate salt. It contains a Luxol fast blue MBS(2-)."}]