L-Phenylalanine, CAS No. 63-91-2

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63-91-2

Catalog No. EBD2198134

CAS 63-91-2

Name L-Phenylalanine

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Basic Information

Synonyms: L-2-Amino-3-phenylpropionicacid H-Phe-OH Phenylalanine PHE Phenylalanine,L- (S)-2-Amino-3-Phenylpropionicacid (S)-(-)-Phenylalanine H-L-PHE-OH (S)-2-Amino-3-phenylpropionicacid~H-Phe-OH L-beta-Phenylalanine L(-)Phenylalaniline Phenyalanine,L- 3-phenyl-l-alanine

Molecular Formula: C9H11NO2

Molecular Weight: 165.19

MDL Number: MFCD00064227

Categories: Medicinal Chemistry > Biochemicals and Life Science Reagents > Amino Acids and Derivatives

Product Description:

L-Phenylalanine is a neutral, aromatic amino acid with the chemical formula C9H11NO2. It is one of the nine essential amino acids for humans, serving as a fundamental building block for protein synthesis. Structurally, it features a benzyl side chain attached to the alpha-carbon of the amino acid backbone. Its primary application is in the pharmaceutical and nutraceutical industries. As a precursor, L-Phenylalanine is metabolized into tyrosine, which is further converted into key neurotransmitters such as dopamine, norepinephrine, and epinephrine. Consequently, it is widely used in parenteral nutrition formulations, as a dietary supplement for cognitive support, and as a raw material in the synthesis of peptide-based drugs. In the food industry, it is a crucial component of the artificial sweetener aspartame (L-aspartyl-L-phenylalanine methyl ester). Additionally, L-Phenylalanine serves as a common chiral building block in organic synthesis for the preparation of various fine chemicals and pharmaceutical intermediates. It is generally recognized as safe (GRAS) when used as a nutrient supplement, though individuals with phenylketonuria (PKU) must strictly avoid it.

Physical Properties

Melting Point: 270-275 °C (dec.)(lit.)

Boiling Point: 307.5 °C at 760 mmHg

Flash Point: 139.8 °C

Density: 1.29

Solubility: H2O: 0.1 M at 20 °C, clear, colorless

Refractivity: -34 ° (C=2, H2O)

Storage: Store at RT.

Analytical Data

Appearance: white crystalline powder