Section VI — Products of the chemical or allied industries
Heading
2933
Heterocyclic compounds with nitrogen heteroatom(s) only.
Common commodities
Pyridine organic baseQuinoline aromatic compoundAcridine nitrogen heterocycleIndole aromatic heterocyclicPyrazole five-membered ringImidazole heterocyclic compoundPiperidine six-membered ringLactams cyclic amidesCytosine nucleic acidAdenine nucleotide