High Purity D-Arabinose 99.9% from China
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 — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
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