[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N][Branch1][=Branch1][C][C][N][Ring1][=Branch1][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt of a 2-piperazinylbenzimidazole-derivative serotonin type 3 (5-HT3) receptor antagonist with antiemetic activity. Lerisetron specifically binds to 5-HT3 receptors, located peripherally on vagus nerve terminals and centrally in the chemoreceptor trigger zone (CTZ) of the area postrema, which may result in suppression of chemotherapy-induced nausea and vomiting."}]