PHE is found in 135163 entries

PHE in polymers: 135064 entries. Examples include: 101M, 102L, 102M

PHE as free ligands, exist in 99 entries. Examples include 1AMU, 1B70, 1C1D

Find related ligands: Stereoisomers Similar ligands Chemical Structure Search

View summary at Ligand Expo

Chemical Component Summary

Identifiers L-phenylalanine
(2S)-2-amino-3-phenyl-propanoic acid
Formula C9 H11 N O2
Molecular Weight 165.19 g/mol
Type L-peptide linking
Isomeric SMILES N[C@@H](Cc1ccccc1)C(O)=O
InChI InChI=1S/C9H11NO2/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5,8H,6,10H2,(H,11,12)/t8-/m0/s1

Chemical Details

Formal Charge 0
Atom Count 23
Chiral Atom Count 1
Chiral Atoms CA
Bond Count 23
Aromatic Bond Count 6
Leaving Atoms OXT H2 HXT

Drug Info: DrugBank

DrugBank ID DB00120   (Stereoisomeric match)
Name L-Phenylalanine
  • approved
  • nutraceutical
Description An essential aromatic amino acid that is a precursor of melanin; dopamine; noradrenalin (norepinephrine), and thyroxine. [PubChem]
  • (S)-2-Amino-3-phenylpropionic acid
  • (S)-alpha-Amino-beta-phenylpropionic acid
  • 3-phenyl-L-alanine
  • beta-Phenyl-L-alanine
  • F
  • L-Phenylalanine hydrochloride
  • Phenylalanine sodium
Brand Names
  • Aminosyn
  • Aminosyn 10%
  • Aminosyn 10% W Electrolytes
  • Aminosyn 3.5% M
  • Aminosyn 5%
Affected Organism Humans and other mammals
Indication L-phenylalanine may be helpful in some with depression. It may also be useful in the treatment of vitiligo. There is some evidence that L-phenylalanine may exacerbate tardive dyskinesia in some schizophrenic patients and in some who have used neuroleptic drugs.
Pharmacology Used by the brain to produce Norepinephrine, a chemical that transmits signals between nerve cells and the brain; keeps you awake and alert; reduces hunger pains; functions as an antidepressant and helps improve memory.
Mechanism of action The mechanism of L-phenylalanine's putative antidepressant activity may be accounted for by its precursor role in the synthesis of the neurotransmitters norepinephrine and dopamine. Elevated brain norepinephrine and dopamine levels are thought to be associated with antidepressant effects.
The mechanism of L-phenylalanine's possible antivitiligo activity is not well understood. It is thought that L-phenylalanine may stimulate the production of melanin in the affected skin
Route of administration Intravenous
  • Amino Acids
  • Amino Acids, Aromatic
  • Amino Acids, Cyclic
  • Amino Acids, Essential
  • Amino Acids, Peptides, and Proteins
CAS number 63-91-2
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID: 21059682