Promethazine Hydrochloride from Japan
Promethazine hydrochloride is a phenothiazine derivative used as an antihistamine, antiemetic, and sedative. It contains a phenothiazine ring-system that is not further fused with other rings, qualifying it for classification under HTS 2934.30.5000 as 'other' compounds with this specific structure.
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
• Provide certificates of analysis confirming chemical purity and phenothiazine structure to avoid reclassification
• Ensure FDA registration and drug master files are complete for pharmaceutical imports; common pitfall is missing impurity declarations
• Label shipments with exact CAS number (58-88-8) and batch details to facilitate customs clearance