4-Borono-DL-phenylalanine
4-Borono-DL-phenylalanine (CAS: 90580-64-6) is an unnatural amino acid derivative with the linear formula (HO)₂BC₆H₄CH₂CH(NH₂)CO₂H and a molecular weight of 209.01 g/mol. It is a key building block in chemical synthesis and peptide chemistry. Its unique structure makes it valuable in chemical biology research and for creating modified peptides and proteins. TSS supplies this compound at a minimum purity of 95%.
- IUPAC
- 4-Dihydroxyboryl-DL-phenylalanine
- Synonyms
- 4-Dihydroxyboryl-DL-phenylalanine

Chemical Synthesis
Serves as a versatile intermediate in the synthesis of complex organic molecules. Its boronic acid moiety allows for various coupling reactions, facilitating the construction of novel chemical entities.
Peptide Chemistry
Used as an unnatural amino acid for incorporation into peptides. This modification can alter peptide structure, stability, and biological activity for research purposes.
Chemical Biology
Enables the study of biological processes by incorporating modified amino acids into biomolecules. Useful for developing probes and investigating protein function.
Drug Discovery
A building block for developing new pharmaceutical candidates. Its structure can be leveraged in the design of therapeutic agents targeting various biological pathways.
| Molecular weight | 209.01 |
|---|---|
| Linear formula | (HO)2BC6H4CH2CH(NH2)CO2H |
| Assay | 95% |
| Melting point | 270 °C (dec.)(lit.) |
| 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.
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 4-Borono-DL-phenylalanine used for?
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4-Borono-DL-phenylalanine is used in chemical synthesis, peptide chemistry, chemical biology research, and drug discovery as an unnatural amino acid building block.
What are the CAS number and formula for 4-Borono-DL-phenylalanine?
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The CAS number is 90580-64-6 and the linear formula is (HO)₂BC₆H₄CH₂CH(NH₂)CO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Borono-DL-phenylalanine with a minimum purity of 95%. TSS does not represent this product as USP, BP, or EP grade.
How should 4-Borono-DL-phenylalanine be handled?
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When handling 4-Borono-DL-phenylalanine, appropriate personal protective equipment including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter should be used. It is classified under WGK 2 in Germany.
Is 4-Borono-DL-phenylalanine exported by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Borono-DL-phenylalanine.
How can I request a quote or sample for 4-Borono-DL-phenylalanine?
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Please contact the TSS sales department via our website or direct inquiry to request a quote or sample for 4-Borono-DL-phenylalanine.
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