Cyclic Adenosine Monophosphate (cAMP) Sodium Salt from Canada
cAMP sodium salt is a key second messenger in cellular signaling pathways. HTS 2934.99.39.00 covers this aromatic heterocyclic nucleotide listed in U.S. note 3.
Duty Rate — Canada → United States
110%
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
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify cyclized structure via 31P-NMR spectroscopy data
• Store and ship at -80°C to preserve signaling activity
• Include phosphodiesterase stability test results