Section 06 Products of the chemical or allied industries 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. Commodity Code Description 29 18 11 Lactic acid, its salts and esters 29 18 12 Tartaric acid 29 18 13 Salts and esters of tartaric acid 29 18 14 Citric acid 29 18 15 Salts and esters of citric acid 29 18 16 Gluconic acid, its salts and esters 29 18 17 2,2- Diphenyl-2-hydroxyacetic acid (benzilic acid) 29 18 18 - Chlorobenzilate (ISO) 29 18 19 Other 29 18 21 Salicylic acid and its salts 29 18 22 O-acetylsalicylic acid, its salts and esters 29 18 23 Other esters of salicylic acid and their salts 29 18 29 Other 29 18 30 Carboxylic acids with aldehyde, ketone but without oxygen function, etc 29 18 91 2,4,5-T (ISO) 2,4,5-trichlorophenoxyacetic acid), its salts and esters 29 18 99 Other