Pharmaceutical Ammonium Carbonate Crystals from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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