L-phenylalanine

L-Phenylalanine (CAS 63-91-2) is an essential amino acid used as a pure crystalline ingredient in nutritional, pharmaceutical and specialty formulations. Also known as L-Phe; FEMA 3585.

Where is L-phenylalanine used?

• Sweetener and flavour manufacturing: direct biosynthetic precursor to aspartame and other high-value compounds
• Pharmaceuticals: active ingredient and synthesis intermediate in amino acid infusion solutions and parenteral nutrition
• Peptide drug manufacturing and specialised medical foods
• Sports nutrition and dietary supplements: free-form amino acid blends and protein fortification for muscle recovery and metabolic support
• Personal care: skin-conditioning and antioxidant-stabilised topical products where amino acid actives are specified
• It is also used in cosmetic formulations requiring high-purity chemical inputs.

Good to know: Fermentation-derived material is available for clean-label and non-GMO positioning.

Commercial specifications

• USP, BP, Ph. Eur. and FCC quality standards
• Pack sizes from kilogram quantities to bulk metric-ton shipments