Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 04 Sulphonated, nitrated or nitrosated derivatives of hydrocarbons 29 04 20 Derivatives containing only nitro or only nitroso groups 29 04 20 00 Derivatives containing only nitro or only nitroso groups Commodity Code Description 29 04 20 00 000 Derivatives containing only nitro or only nitroso groups
