L-Phenylalanine from Japan
L-Phenylalanine is a precursor amino acid in aspartame production and nutritional products. Classified under HTS 2922.49.80.00 as an oxygen-function amino-acid without multiple oxygen types.
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
• Certify phenylketonuria warnings for PKU-sensitive imports; validate HPLC purity >99%; segregate from aspartame mixtures