Section VI — Products of the chemical or allied industries
Chapter 29 — Organic chemicals
Heading 2933 — Heterocyclic compounds with nitrogen heteroatom(s) only.
National subdivision 2933.9 — Other:
Subheading 2933.99 — Other
HS code
2933.99.90
Heterocyclic compunds with notrogen atoms only, not elesewhere specified (nes)
Last Verified Date - 1 October 2026
Common commodities
Carbazole-based heterocyclic compoundIndole-derived complex nitrogen systemHighly fused pyrrole derivativeComplex nitrogen heterocycle (nes)Nitrogenous heterocyclic compound - Carbazole typePyrrole-rich highly fused nitrogen systemIndole-based nes heterocycleFused nitrogen complex - Pyrrole structureCarbazole-heteroatom compound (nes)Complex pyrrole-nitrogen heterocycle