Morpholine from Canada
Morpholine features a six-membered heterocyclic ring with one oxygen and one nitrogen atom, but classified under oxygen heterocycle provisions of HTS 2932.99.61.00 when specified in additional U.S. note 3. Used in rubber curing and corrosion inhibition.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide end-use certificates if imported for rubber accelerator applications
• Ensure proper ventilation labeling for amine odor during transport
• Verify REACH compliance documentation for EU-origin morpholine