Xenon-131 Isotope Gas for MRI from United States
Xenon-131 isotope gas, purified to 99%+ isotopic composition by volume, is a separate chemically defined element under heading 28.04. It is specialized for hyperpolarized MRI lung imaging, and its high isotopic purity aligns with Chapter 28 Note 1(a) for chemical elements, without added stabilizers or solvents.
Duty Rate — United States → Canada
0%
Import Tips
• Provide documentation proving isotopic purity and that the gas is not radioactive
• Ensure the product is not put up in measured doses or retail packs, which could shift classification
• Confirm with CBSA that the gas is for research or medical use, as end-use may affect permits