Section 06 Products of the chemical or allied 29 Organic chemicals 29 33 Heterocyclic compounds with nitrogen hetero-atom(s) only 29 33 11 - - Phenazone (antipyrin) and its derivatives 29 33 11 00 - - Phenazone (antipyrin) and its derivatives Commodity Code Description 29 33 11 00 000 - - Phenazone (antipyrin) and its derivatives