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