Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 17 Polycarboxylic acids, their anhydrides...; their ... derivatives 29 17 12 Adipic acid, its salts and esters 29 17 12 00 Adipic acid, its salts and esters Commodity Code Description 29 17 12 00 000 Adipic acid, its salts and esters