Sinapinic Acid from Canada
Sinapinic acid (4-hydroxy-3,5-dimethoxycinnamic acid) serves as MALDI-TOF matrix in mass spectrometry. HTS 2918.29.7500 for phenolic carboxylic acid structure. Analytical grade purity ensures Chapter 29 classification.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.6093.5%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
• Acetonitrile solubility instructions; >99% HPLC purity CoA; proteomics research exemption documentation