Ribonolactone from Canada
Ribonolactone from ribose sugar features a five-membered furanose lactone ring with oxygen hetero-atom only, under HTS 2932.20.50.50. Used in nucleotide synthesis.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%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
• Nucleic acid synthesis end-use declaration differentiates from food sugars
• Anomeric purity (alpha/beta) specification required for pharma grade
• Biohazard containment documentation if for genetic research