Pentoxifylline Research Grade from Canada
Pentoxifylline (3,7-dimethyl-1-(5-oxohexyl)xanthine) is a theophylline derivative hemorheologic agent. HTS 2939.59.00.00 for research chemical grade before formulation. Inhibits phosphodiesterase activity.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• 98%+ HPLC purity; IRB documentation if human trials; no Trental trademark confusion