Other
Heterocyclic compounds with oxygen hetero-atom(s) only. > Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure: > Other > Other
Duty Rate (from China)
Products classified under Tariff item 2933.29.00.00
2-Imidazolidinethione (Ethylene Thiourea) Crystals
Crystalline ethylene thiourea (2-imidazolidinethione) is a heterocyclic organic compound containing an unfused imidazolidine ring with a sulfur atom. It is a key reagent in the synthesis of ethylenebisdithiocarbamate fungicides and rubber additives, qualifying under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2933.29.002-Phenyl-4-Methylimidazole
2-Phenyl-4-methylimidazole is a modified aromatic imidazole derivative with a phenyl group at the 2-position and a methyl group at the 4-position. It is used in photographic chemicals and contains an unfused imidazole ring, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.002-Phenylimidazole
2-Phenylimidazole is a heterocyclic compound containing an unfused imidazole ring with a phenyl group at the 2-position. It is used as an epoxy resin curing agent and in chemical synthesis, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2933.29.002-Phenylimidazole Hydrochloride Salt
2-Phenylimidazole hydrochloride salt is a water-soluble form of 2-phenylimidazole, used in pharmaceutical applications. Per Chapter 29 Note 5, inorganic salts of organic compounds are classified with the parent organic compound, so this salt falls under tariff item 2933.29.00.
2933.29.002-Phenylimidazole Technical Grade
Technical grade 2-phenylimidazole (95-98% purity) is used in epoxy resin curing agents and corrosion inhibitors. It is a chemically defined aromatic heterocyclic compound with an unfused imidazole ring, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00Clotrimazole API
Clotrimazole API is an aromatic imidazole antifungal agent with an unfused imidazole ring structure. It is used in pharmaceutical formulations for topical and oral candidiasis treatment, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00Econazole Nitrate BP
Econazole nitrate BP is an imidazole derivative with an aromatic structure, used as a broad-spectrum antifungal for dermatological applications. It is a chemically defined organic compound with an unfused imidazole ring, classifiable under tariff item 2933.29.00.
2933.29.00Ethylene Thiourea (2-Imidazolidinethione)
Ethylene thiourea, chemically 2-imidazolidinethione, is a heterocyclic imidazolidine compound used as a chemical intermediate and accelerator in rubber vulcanization. It is a separate chemically defined organic compound with an unfused ring containing nitrogen and sulfur, falling under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00Ethylene Thiourea Industrial Grade
Industrial grade ethylene thiourea, featuring the 2-imidazolidinethione structure, is used as an essential intermediate for dithiocarbamate pesticides and rubber processing. It is a chemically defined organic compound with an unfused imidazolidine ring, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00High Purity 2-Phenylimidazole (99%+)
High purity 2-phenylimidazole (99%+) is a pharmaceutical-grade compound used in antifungal drug synthesis and as a ligand in coordination chemistry. It is a separate chemically defined organic compound with an unfused imidazole ring, classifiable under tariff item 2933.29.00.
2933.29.00Industrial 2-Phenylimidazole for Resin Curing
Industrial 2-phenylimidazole is bulk-packaged for epoxy resin curing applications in electronics. It is a pure aromatic heterocyclic compound, not a finished resin, and falls under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2933.29.00Ketoconazole Base
Ketoconazole base is an aromatic imidazole derivative with an unfused imidazole ring, used systemically for fungal infections and hormonal disorders. It is a separate chemically defined organic compound, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00Triflumizole 98% Technical Powder
Triflumizole technical powder (98% minimum purity) is a heterocyclic compound containing an unfused imidazole ring with a 4-chloro-2-(trifluoromethyl)phenyl group. It is used as a fungicide active ingredient for crop protection, classifiable under tariff item 2933.29.00 as an 'other' heterocyclic compound with nitrogen hetero-atom(s) only.
2933.29.00Triflumizole Fungicide Active Ingredient
Triflumizole active ingredient is a pure imidazole fungicide with a characteristic 4-chloro-2-(trifluoromethyl)phenyl structure. It is a chemically defined organic compound with an unfused imidazole ring, used in crop protection formulations, and falls under tariff item 2933.29.00 as an 'other' heterocyclic compound.
2933.29.00Triflumizole Technical Grade
Triflumizole technical grade is a specific imidazole fungicide with the chemical name 1-[1-((4-chloro-2-(trifluoromethyl)phenyl)-imino)-2-propoxyethyl]-1H-imidazole. It features an unfused aromatic imidazole ring and is used in agricultural applications, classifiable under tariff item 2933.29.00.