Ritodrine Hydrochloride from Japan
Ritodrine hydrochloride is a beta-adrenergic agonist containing an unfused thiazole ring, used as a tocolytic agent to prevent premature labor. Classified under HTS 2934.10.90.00 as a thiazole heterocyclic pharmaceutical intermediate or bulk active. The thiazole structure determines classification per Chapter 29 heading precedence rules.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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 FDA IND/NDA documentation for bulk pharmaceutical import authorization
• Provide chiral purity analysis (HPLC) confirming therapeutic enantiomer
• Declare as API (Active Pharmaceutical Ingredient) on CBP entry summary