Norepinephrine Bitartrate from Mexico
Norepinephrine bitartrate is a synthetic salt form of norepinephrine, a catecholamine hormone essential for treating septic shock and hypotension via vasopressor effects. Classified under HTS 2937.90.2000 as a structural analogue of catecholamine hormones used primarily for hormonal action on adrenergic receptors. It qualifies as a separate chemically defined organic compound per Chapter 29 notes.
Duty Rate — Mexico → 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
• Submit DEA documentation if applicable and COA verifying bitartrate salt structure to confirm catecholamine classification
• Declare as pharmaceutical API with proof of >98% purity to prevent misclassification as general chemical
• Watch for oxidation issues; provide stabilizer data and avoid bulk packaging without proper inert atmosphere seals