Phenylglycine
Phenylglycine (alpha-amino-phenylacetic acid) is an aromatic amino acid used as intermediate in antibiotic synthesis, classified in HTS 2922.49.37.00 as other aromatic oxygen-function amino-compounds. It features a single carboxyl group and phenyl substitution on the alpha-carbon. Meets Chapter 29 note (a) for separate chemically defined organic compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chemically modified specifically for antibiotic synthesis
Products of heading 2941 (antibiotics) take precedence over general amino-acid classification per note 3.
If it's specifically named like para-aminophenylacetic acid
More specific subheadings within 2922.49 exist for enumerated compounds; 37.00 is true residual category.
If sold as heterocyclic intermediate rather than amino-acid
If imported with emphasis on quaternary structure for pharma synthesis, may shift to heterocyclics.
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Import Tips & Compliance
• Submit manufacturer's specification sheet confirming CAS 2835-06-5 (DL) or 875-74-1 (L) and HPLC purity to validate classification
• Comply with TSCA import certification; declare as non-PBT chemical to avoid EPA holds
Related Products under HTS 2922.49.37.00
DL-Phenylalanine
DL-Phenylalanine is an aromatic amino acid containing a single carboxyl oxygen function, classified under HTS 2922.49.37.00 as an oxygen-function amino-compound that is neither a proteinogenic amino acid nor a drug. It is used as a nutritional supplement and in pharmaceutical intermediates. The code covers other aromatic amino acids and their simple derivatives not specified elsewhere.
DL-Tyrosine
DL-Tyrosine is a synthetic aromatic amino acid with phenolic oxygen function, falling under HTS 2922.49.37.00 as 'other' oxygen-function amino-compounds. Despite its phenolic group, it qualifies due to single carboxyl classification and exclusion from proteinogenic listings. Commonly used in nootropic supplements and biochemical research.
4-Fluorophenylalanine
4-Fluorophenylalanine is a halogenated aromatic amino acid used in PET imaging tracers and protein engineering, falling under HTS 2922.49.37.00. The fluorine substitution doesn't alter its oxygen-function amino-acid classification per chapter note 4. Qualifies as chemically defined compound of note (a).
Benzyl Glycine
Benzyl glycine (2-amino-3-phenylpropanoic acid variant) is an aromatic-substituted glycine classified under HTS 2922.49.37.00 as other aromatic oxygen-function amino-compound. Single carboxyl function qualifies it for this heading. Used in custom peptide production.
3-Nitrophenylalanine
3-Nitrophenylalanine is a nitro-substituted aromatic amino acid used in photocaging groups for photochemistry, classified HTS 2922.49.37.00. Nitro group doesn't count as nitrogen-function for 2929 per chapter note 4. Single oxygen-function carboxyl defines classification.
D-Phenylalaninol
D-Phenylalaninol is the amino-alcohol reduction product of phenylalanine, classified under HTS 2922.49.37.00 as oxygen-function amino-compound (alcohol oxygen). Retains amino-acid carbon skeleton recognition. Used in chiral ligand synthesis.