Methylephedrine from China
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 — China → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
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