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l-phenylalanine

L-Phenylalanine

Phenylalanine /ˌfɛnᵊlˈæləˌniːn/ (abbreviated as Phe or F)[2] is an α-amino acid with the formula C6H5CH2CH(NH2)COOH. This essential amino acid is classified as neutral, and nonpolar because of the inert and hydrophobic nature of the benzyl side chain. The L-isomer is used to biochemically form proteins, coded for by DNA. The codons for L-phenylalanine are UUU and UUC. Phenylalanine is a precursor for tyrosine, the monoamine neurotransmitters dopamine, norepinephrine (noradrenaline), and epinephrine (adrenaline), and the skin pigment melanin.

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Product Description


IUPAC name

Phenylalanine
Other names

2-Amino-3-phenylpropanoic acid

CAS Number
150-30-1 (DL)
63-91-2 (L)
ChEBI CHEBI:58095
ChEMBL ChEMBL301523
ChemSpider 5910
DrugBank DB00120
IUPHAR/BPS
3313
KEGG D00021
PubChem 994
UNII 8P946UF12S
InChI[show]

Chemical formula
C6H5CH2CH(NH2)COOH
Acidity (pKa) 1.83 (carboxyl), 9.13 (amino)[1]

Safety data sheet See: data page
NFPA 704

Structure and
properties
Refractive index (n),
Dielectric constant (εr), etc.
Thermodynamic
data
Phase behaviour
solid–liquid–gas
Spectral data
UV, IR, NMR, MS