2937.90.20.00/Levodopa (L-DOPA)/Canada

Levodopa (L-DOPA) from Canada

Levodopa, or L-DOPA, is a direct precursor and structural analogue of dopamine, functioning as a catecholamine hormone prodrug in Parkinson's treatment. It is classified in HTS 2937.90.2000 as a catecholamine derivative used primarily for its hormonal effects in the brain. Meets Chapter 29 definition for hormone structural analogues.

Duty Rate — Canada → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Provide chiral purity documentation (>99% L-enantiomer) to confirm hormonal analogue status

• Declare oxidation prevention measures in shipping manifests