(R)-Phenylglycine Free Acid from Japan
The free acid form of D-phenylglycine, a critical chirality center for beta-lactam synthesis. HTS 2922.49.0500 explicitly names this aromatic α-amino acid. Supplied as white crystalline powder with high enantiomeric excess.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Chiral HPLC certificate mandatory showing ee >99%
• Microbial limits testing required for pharma intermediate qualification
• Store below 25°C; validate polymorphic form stability