[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][#Branch2][=O][C][=C][C][=C][Ring1][Branch2][O]"}, {"from": "gpt", "value": "The molecule is a reddish, synthetic anthraquinone derivative. Danthron has been widely used as a laxative, but is no longer used to treat constipation and is currently used as an antioxidant in synthetic lubricants, in the synthesis of experimental antitumor agents, as a fungicide and as an intermediate for making dyes. This substance is a suspected mutagen and is reasonably anticipated to be a human carcinogen based on evidence of carcinogenicity in experimental animals. (NCI05)"}]