Section 06 Products of the chemical or allied 29 Organic chemicals 29 33 Heterocyclic compounds with nitrogen hetero-atom(s) only; nucleic acids 29 33 39 Compounds containing an unfused pyridine ring in the structure, nes Commodity Code Description 29 33 39 00 Compounds containing an unfused pyridine ring in the structure, nes 29 33 39 10 Chlorpheniramine and isoniazid 29 33 39 30 Paraquat salts 29 33 39 90 Other