Xenon-129 Isotopically Pure Gas from Mexico
Xenon-129 (Xe-129) gas enriched to 99%+ isotopic purity by volume, falling under HTS 2804.29.0030 for isotopically pure rare gases. Primarily utilized in NMR spectroscopy and medical imaging research.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Require supplier certificate of analysis confirming Xe-129 enrichment >99% to justify 2804.29.0030 classification
• Comply with EPA import notifications for high-purity gases used in research applications
• Package in certified high-pressure cylinders; declare as 'research gas' to avoid general chemical tariffs