Methylephedrine from Japan
Methylephedrine is an N-methylated ether derivative of ephedrine, synthesized as a bronchodilator in some Asian markets. Classified in HTS 2939.49.0300 covering ethers and other derivatives of ephedra alkaloids. The modification maintains its classification within the specific ephedra subheading.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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
• Provide synthesis pathway documentation proving ephedrine origin for derivative status
• Monitor CITES permits if plant-extracted precursor used in synthesis
• Label as 'not for human consumption' if research-grade to avoid drug regulations