L-Aspartic Acid Monohydrate Powder from China
L-Aspartic acid in monohydrate crystalline form (C4H7NO4·H2O) for pharmaceutical and supplement applications. Remains classified under HTS 2922.49.49.15 as the hydrate doesn't alter its chemical definition as pure L-aspartic acid. The water of crystallization is incidental per Chapter 29 solvent notes.
Duty Rate — China → United States
29.2%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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
• Specify hydrate water content via Karl Fischer titration (<12%) to maintain pure compound status
• Use UN 3077 packaging for 1000kg+ bulk to meet DOT transport requirements
• Validate optical rotation [+24°] confirms L-isomer during customs exam