Pharmaceutical Ammonium Carbonate Crystals from China
High-purity ammonium carbonate crystals used in pharmaceutical formulations as a buffering agent and expectorant. It qualifies for HTS 2836.99.30.00 as commercial ammonium carbonate with carbamate, meeting Chapter 28 definitions for inorganic carbonates of ammonium. USP-grade ensures compliance for medicinal use.
Duty Rate — China → United States
36.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Provide USP or NF certificates of analysis to prove pharmaceutical grade and avoid reclassification
• Declare intended medicinal end-use to comply with FDA import alerts for drug precursors