Demerol (meperidine) contains piperidine and imidazole, but not pyrrolidine, pyrrole, pyridine, or pyrimidine.
The subject of Demerol (meperidine) is Chemistry.
Demerol (meperidine) contains piperidine and not pyrrolidine, pyrrole, pyridine, or pyrimidine. Imidazole is not part of Demerol; it is a five-membered heterocyclic ring that is aromatic and contributes to its structure.
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