Deuterated Piperidine-d11 from Japan
Piperidine-d11 with all 11 hydrogen positions replaced by deuterium, used in NMR spectroscopy. As isotopically substituted piperidine, it qualifies as the same compound under Chapter Note 1(a).
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include isotopic purity certificate and NMR characterization data
• Deuterated compounds follow parent classification; no separate isotope provisions
• Special handling for expensive isotopologues; verify insurance and temperature control