Warfarin Sodium Precursor (4-Hydroxycoumarin Base)
4-Hydroxycoumarin base used to synthesize warfarin sodium, a pharmaceutical anticoagulant. Classified in HTS 2932.20.2500 for its specific aromatic lactone structure per subheading.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| π¨π³China | 6.5% | +12.5% | 19% |
| π²π½Mexico | 6.5% | +10.0% | 16.5% |
| π¨π¦Canada | 6.5% | +10.0% | 16.5% |
| π©πͺGermany | Free | +10.0% | 10% |
| π―π΅Japan | Free | +12.5% | 12.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If further processed into hormones
Hormone derivatives shift to 2937 per chapter note (g).
If in immunological product form
Chapter exclusion sends immunological products to Chapter 30.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Include DMF reference for pharma use; test for heavy metals per USP
β’ Pitfall: pharma intermediates sometimes misentered under 2940
Related Products under HTS 2932.20.25.00
4-Hydroxycoumarin Powder
Pure 4-Hydroxycoumarin is a synthetic aromatic lactone classified under HTS 2932.20.2500 as a heterocyclic compound with oxygen hetero-atoms only. It serves as a key intermediate in pharmaceutical synthesis, particularly for anticoagulant derivatives.
Coumachlor (3-(Ξ±-acetonyl-4-hydroxycoumarin))
Coumachlor is a 4-hydroxycoumarin derivative used as a rodenticide anticoagulant. It qualifies under HTS 2932.20.2500 due to its core 4-hydroxycoumarin lactone structure with aromatic heterocyclic oxygen atoms.
Brodifacoum Technical Grade
Brodifacoum is a second-generation 4-hydroxycoumarin anticoagulant rodenticide in technical powder form. Classified under HTS 2932.20.2500 for its aromatic lactone heterocyclic structure as a separate organic compound.
Difenacoum Active Ingredient
Difenacoum is a synthetic 4-hydroxycoumarin derivative used in anticoagulant baits for pest control. It falls under HTS 2932.20.2500 as an aromatic lactone with oxygen hetero-atoms in its heterocyclic ring.
Pindone (2-Pivalyl-1,3-indandione from 4-Hydroxycoumarin)
Pindone is an anticoagulant rodenticide derived from 4-hydroxycoumarin structures. HTS 2932.20.2500 applies to its pure form as an aromatic heterocyclic lactone compound.
4-Hydroxycoumarin USP Grade
USP-grade 4-Hydroxycoumarin meets pharmacopeia standards for research and synthesis. It is classified under HTS 2932.20.2500 as the pure aromatic lactone heterocyclic compound.