[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch2][Ring1][S][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a commercial preparation, by Novartis, with laxative activity. Ex-Lax contains anthraquinone glycosides sennosides, extracted from senna leaves. Sennosides irritate the lining of the intestine wall, thereby causing increased intestinal muscle contractions that lead to vigorous bowel movement and relief constipation."}]