HS 2934-30 – Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. – Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused.