SHEET /m/phenylalanine · PubChem CID 6140 · CAS 63-91-2 · REV 2026.07
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Phenylalanine
from sourceC9H11NO2 · 165.19 g/mol
L-Phe · beta-Phenyl-L-alanine · F · β-phenyl-L-alanine
What is Phenylalanine?
An essential amino acid from ordinary protein food, and the raw material your body builds tyrosine, dopamine, and adrenaline from. from source
CategoryBody
LeaderboardsBiggest
Fig. 1 · 2D structure RDKit
SMILES
C1=CC=C(C=C1)C[C@@H](C(=O)O)NWhere you'll find it
Your own body makes this one. It is not an ingredient you buy. See the rest of the body group.
Toxicity & hazards
Toxicity · LD50
5,287 mg/kg · very low toxicity · LD50 rat other from source
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Where Phenylalanine leads
Relatedcomputed
Tyrosine70% similarBoth carry a carboxylic acid and an amine group.L-DOPA58% similarBoth carry a carboxylic acid and an amine group.Amphetamine52% similarBoth carry an amine group.Dextroamphetamine52% similarBoth carry an amine group.Tryptophan50% similarBoth carry a carboxylic acid and an amine group.Phenylacetic acid44% similarBoth carry a carboxylic acid group.