[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N][Branch1][Ring1][C][C][C][C][O][C][=Branch1][C][=O][C][=C][Branch1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Cl]"}, {"from": "gpt", "value": "The molecule is procaine in which one of the hydrogens ortho- to the carboxylic acid group is substituted by chlorine. It is used as its monohydrochloride salt as a local anaesthetic, particularly for oral surgery. It has the advantage over lidocaine of constricting blood vessels, so reducing bleeding. It has a role as a local anaesthetic, a peripheral nervous system drug and a central nervous system depressant. It is a benzoate ester and a member of monochlorobenzenes. It is functionally related to a 2-diethylaminoethanol and a 4-amino-2-chlorobenzoic acid."}]