Fenbuconazole Pure Active Ingredient from China
Fenbuconazole, chemically α-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H-1,2,4-triazole-1-propanenitrile, is a specific nitrogen-heterocyclic fungicide listed explicitly under HTS 2933.99.06.00. This pure form is used as the technical material for synthesizing crop protection formulations. It qualifies due to its aromatic triazole structure and chapter restrictions to chemically defined compounds.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Submit FIFRA import documentation and EPA Establishment Number
• Include NMR or HPLC analysis confirming chemical identity
• Avoid common pitfalls like mislabeling as generic 'triazole' without specific name