Ergocristinine from Canada
Ergocristinine is an isolysergic acid derivative from rye ergot, used in alkaloid research. Classified in HTS 2939.69.00.00 as 'other' rye ergot derivatives, distinguished from lysergic acid amide (2939.41). Meets chapter note for chemically pure organic compounds.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Laboratory use declaration helps avoid pharmaceutical scrutiny
• Ensure no amide modification that would trigger 2939.41