High Purity D-Arabinose 99.9% from Mexico
Ultra-high purity (99.9+%) D-Arabinose for quantitative NMR standards and isotopic purity reference materials. Single enantiomer confirmed by polarimetry and chiral HPLC. HTS 2940.00.20.00 for research-grade chemically pure sugar.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Chiral HPLC and polarimetry data mandatory for enantiomeric excess claims
• Argon atmosphere packaging for oxygen-sensitive ultra-pure grades
• Reference material declarations prevent finished pharmaceutical classification