Colchicine

Colchicine contains a tropolone ring system (modified aromatic heterocycle) used for gout treatment and as an anti-inflammatory drug. It falls under HTS 2934.99.30.00 as a chemically defined aromatic heterocyclic pharmaceutical drug.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%6.5%
🇲🇽Mexico6.5%6.5%
🇨🇦Canada6.5%6.5%
🇩🇪Germany6.5%6.5%
🇯🇵Japan6.5%6.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2939Higher: 16.5% vs 6.5%

If for plant alkaloid extracts

Crude plant extracts containing colchicine classify under vegetable alkaloids before pure drugs.

3003.39Higher: 10% vs 6.5%

If in compounded oral dosage forms

Finished hormone or steroid-like medicaments move to Chapter 30.

1211.90Higher: 16% vs 6.5%

If as part of herbal plant material

Plants containing colchicine alkaloids import under Chapter 12 as medicinal plants.

Not sure which classification is right?

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Import Tips & Compliance

Include Certificates of Analysis showing total alkaloid content and absence of related substances

Provide REMS program documentation if importing for US distribution due to safety restrictions

Declare exact moisture content as it affects stability during storage and transport

Related Products under HTS 2934.99.30.00

Adenosine Triphosphate (ATP) Disodium Salt

ATP disodium salt is a chemically defined nucleic acid derivative used as a pharmaceutical drug for cellular energy studies and metabolic research. It falls under HTS 2934.99.30.00 as an aromatic heterocyclic compound classified as a drug due to its primary pharmaceutical applications in medical research and therapeutics.

5-Fluorouracil

5-Fluorouracil is an aromatic pyrimidine analog used as an antineoplastic drug for cancer chemotherapy treatment. Classified under HTS 2934.99.30.00 as a drug featuring a modified aromatic heterocyclic structure essential for its pharmaceutical action.

Methotrexate

Methotrexate is a folic acid antagonist featuring pteridine heterocyclic rings, used as an antineoplastic and immunosuppressant drug. It qualifies for HTS 2934.99.30.00 as an aromatic heterocyclic drug compound used in rheumatoid arthritis and cancer treatments.

Allopurinol

Allopurinol is a xanthine oxidase inhibitor with purine-like triazole ring structure, used to treat gout and hyperuricemia. This aromatic heterocyclic compound is classified as a drug under HTS 2934.99.30.00 due to its pharmaceutical therapeutic applications.

Mercaptopurine

Mercaptopurine is a purine antimetabolite with thiopurine heterocyclic structure used in leukemia chemotherapy. Classified under HTS 2934.99.30.00 as an aromatic heterocyclic drug due to its pharmaceutical anticancer applications.

Thioguanine

Thioguanine is a guanine analog with thiopurine structure used as antileukemic drug featuring aromatic heterocyclic rings. It qualifies for HTS 2934.99.30.00 classification as a pharmaceutical drug compound.