3-Aminocrotonic Acid Methyl Ester Hydrochloride Salt from Japan
The hydrochloride salt of 3-aminocrotonic acid methyl ester, classified with the parent ester under HTS 2922.49.60.00 per chapter note 3(C)(1). This stabilized form is commonly used in pharmaceutical manufacturing to improve handling and solubility. It maintains the amino-ester oxygen function characteristic of heading 2922.
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
• Declare salt content percentage; classified with parent compound but affects purity calculations
• Ensure pH stability documentation for salt form during customs valuation