Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 17 Polycarboxylic acids, their anhydrides...; their ... derivatives 29 17 11 Oxalic acid, its salts and esters 29 17 11 00 Oxalic acid, its salts and esters Commodity Code Description 29 17 11 00 000 Oxalic acid, its salts and esters
