[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][=N][C][=C][Branch2][=Branch1][S][C][=C][C][=C][Branch1][#Branch2][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][O][N][C][=Branch1][C][=O][N][C][=C][C][=C][C][=Branch2][Ring2][O][=C][Branch1][N][C][=Branch1][Branch2][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2][O][N][=N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[Na+1].[Na+1].[Na+1]"}, {"from": "gpt", "value": "The molecule is an organic sodium salt that is the trisodium salt of 4-hydroxy-7-[({5-hydroxy-6-[(3-methoxyphenyl)diazenyl]-7-sulfonaphthalen-2-yl}carbamoyl)amino]-3-[(6-sulfonaphthalen-2-yl)diazenyl]naphthalene-2-sulfonic acid. A direct cotton dye that is also capable of hydrogen bonding to amyloid and giving a dark enough red colour to be useful in diagnostic histology. It has a role as a histological dye. It contains a benzo scarlet 4BNS(3-)."}]