HS chapter
29
Organic chemicals
1,716 UK codes·1,227 US codes· 42 headings

2911Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives

2933Heterocyclic compounds with nitrogen hetero-atom(s) only

UK commodity codes (289)
US HTS codes (128)