Section 06 Products of the chemical or allied 29 Organic chemicals 29 32 Heterocyclic compounds with oxygen hetero-atom(s) only 29 32 21 Coumarin, methylcoumarins and ethylcoumarins 29 32 21 00 Coumarin, methylcoumarins and ethylcoumarins Commodity Code Description 29 32 21 00 00 Coumarin, methylcoumarins and ethylcoumarins