Dihydrofuran-2(3H)-one (Butyrolactone) from Canada
Dihydrofuran-2(3H)-one, synonymous with butyrolactone, is a lactone with a single oxygen hetero-atom in its heterocyclic ring, directly under HTS 2932.20.50.10. Essential for polymer and resin manufacturing.
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
• Confirm chemical identity via CAS 96-48-0 on invoices; segregate from GBL-misuse regulated shipments; use DOT-compliant packaging for transport stabilizers