D-Phenylalanine
D-Phenylalanine (CAS: 673-06-3; C9H11NO2) is a non-proteinogenic amino acid, an enantiomer of the essential amino acid L-phenylalanine. This premium-grade compound, with a molecular weight of 165.19 g/mol, serves as a crucial chiral building block in organic synthesis and peptide chemistry. Its applications extend to research in chemical biology and the development of novel biochemical pathways.
- IUPAC
- (R)-2-Amino-3-phenylpropionic acid
- Synonyms
- D-Alanine, 3-phenyl-

Chiral Synthesis
D-Phenylalanine is a valuable chiral synthon utilized in the stereoselective synthesis of complex organic molecules, including pharmaceuticals and fine chemicals. Its defined stereochemistry allows for precise control over product enantiopurity.
Peptide Chemistry
As a non-canonical amino acid, D-Phenylalanine is incorporated into peptides to modify their structure, stability, and biological activity. This is important for developing peptide-based therapeutics and research tools.
Chemical Biology Research
It serves as a research reagent for investigating enzyme mechanisms, protein structure, and metabolic pathways. Its unique properties offer insights into biological systems distinct from its L-enantiomer.
| Molecular weight | 165.19 |
|---|---|
| Empirical formula | C9H11NO2 |
| Assay | ≥98% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality Level | PREMIUM |
|---|---|
| Gene Information | human ... CA1(759), CA14(23632), CA2(760), CA4(762), CA5A(763), CA7(766) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is D-Phenylalanine used for?
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D-Phenylalanine is primarily used as a chiral building block in organic and peptide synthesis, and in chemical biology research.
What are the CAS number and molecular formula for D-Phenylalanine?
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The CAS number for D-Phenylalanine is 673-06-3 and its molecular formula is C9H11NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies D-Phenylalanine at a PREMIUM quality level with an assay of ≥98%. We do not represent this product as USP, BP, or EP grade.
How should D-Phenylalanine be handled safely?
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When handling D-Phenylalanine, it is recommended to use safety precautions including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter may be necessary. This compound has a WGK Germany classification of 3.
Is D-Phenylalanine a controlled substance?
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The provided data does not indicate that D-Phenylalanine (CAS: 673-06-3) is a controlled substance.
How is D-Phenylalanine packed and shipped?
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D-Phenylalanine is packed and exported by TSS according to industry best practices to ensure product integrity and safety during transit.
How can I request a sample or quote for D-Phenylalanine?
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To request a sample or obtain a quote for D-Phenylalanine, please contact the TSS sales department via our website or direct inquiry channels.
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