[{"from": "human", "value": "Describe this molecule. [C][N][C][=Branch2][Ring2][#Branch2][=C][Branch1][O][C][=C][Ring1][Branch1][N][=C][C][=C][Ring1][=Branch1][/C][=C][/C][=Branch1][C][=O][N][C][C][C][=C][C][=Branch1][=N][=C][Branch1][Branch2][C][=C][Ring1][=Branch1][C][Ring1][#Branch2][O][C][O][C][C][=C][C][=C][C][=C][Ring1][=Branch1].[Cl]"}, {"from": "gpt", "value": "The molecule is a hydrochloride resulting from the reaction of SIS3 free base with 1 mol eq. of hydrogen chloride. It has a role as a Smad3 inhibitor. It contains a SIS3 free base(1+)."}]