Which of the Following is Not a Heterocyclic Aromatic Amine

Question

Which of the following is not a heterocyclic aromatic amine?
A) piperidine
B) purine
C) pyrimidine
D) pyridine

Accepted Answer

Piperidine is not an aromatic compound, so it cannot be a heterocyclic aromatic amine. Purine, pyrimidine, and pyridine all contain aromatic rings and are commonly found as heterocyclic aromatic amines.