Section 06 Products of the chemical or allied 29 Organic chemicals 29 20 Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives 29 20 23 - - Trimethyl phosphate Commodity Code Description 29 20 23 00 - - Trimethyl phosphate