Norephedrine Base Free Form from China
While heading specifies salts, pure norephedrine base imported for salt formation falls under HTS 2939.44.00.00 as ephedra alkaloid derivative. Synthetic reproduction of natural norephedrine for custom salt manufacturing. Used by API producers creating patient-specific formulations.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Base form more volatile - requires special transport with stabilizers per chapter note (f); provide conversion yield data for salt production validation