[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][O][C][=C][Branch1][#Branch2][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][O][C][C][N][Branch1][Ring1][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a local anesthetic of the ester type that has a rapid onset of action and a longer duration of action than procaine hydrochloride.  This drug was removed from the US market in 1996.    Although no longer available in the United States, this medication was used in combination with procaine to aid in anesthesia during dental procedures.  Used in combination with procaine, it was the only dental local anesthetic available in cartridge form."}]