L-Ascorbic Acid USP Grade from China
Pure L-ascorbic acid, the active form of Vitamin C, meeting United States Pharmacopeia standards for pharmaceutical and supplement use. Classified under HTS 2936.27.00.00 as a chemically defined vitamin derivative used primarily as a vitamin source. It serves as an essential nutrient and antioxidant in various formulations.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Verify USP certificate of analysis and purity ≥99% to confirm classification as unmixed Vitamin C derivative
• Include stability data showing proper packaging to prevent oxidation during transport
• Avoid mixtures with flavors or sweeteners that could reclassify under Chapter 30 as medicated preparations