Section 06 Products of the chemical or allied 29 Organic chemicals 29 18 Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives 29 18 91 - - 2,4,5-T (ISO) (2,4,5-trichlorophenoxy- aceticacid), its salts and esters Commodity Code Description 29 18 91 00 - - 2,4,5-T (ISO) (2,4,5-trichlorophenoxy- aceticacid), its salts and esters