Boc-Phe(4-Br)-OH
Boc-Phe(4-Br)-OH (CAS 62129-39-9) is an unnatural amino acid derivative featuring a bromine atom on the phenylalanine phenyl ring, protected with a Boc group. With a molecular weight of 344.20 g/mol and an assay of ≥98.0%, it serves as a valuable building block in chemical synthesis. Its structure is particularly useful for introducing modified phenylalanine residues into peptides and for applications in chemical biology research. TSS supplies this compound for research and development purposes.
- IUPAC
- Boc-4-bromo-L-phenylalanine
- Synonyms
- Boc-4-bromo-L-phenylalanine

Peptide Synthesis
Utilised as a specialised building block in solid-phase or solution-phase peptide synthesis to incorporate a brominated phenylalanine residue. This modification can influence peptide structure, stability, or serve as a handle for further chemical modifications.
Chemical Biology
Employed in the design and synthesis of peptides or small molecules for biochemical studies. The bromine atom can be involved in halogen bonding interactions or serve as a site for cross-coupling reactions.
Medicinal Chemistry
Acts as an intermediate in the synthesis of novel pharmaceutical agents or drug candidates. The bromo-phenylalanine moiety can be a key structural element in designing molecules with specific biological activities.
Organic Synthesis
Serves as a versatile intermediate for creating complex organic molecules. The Boc protecting group allows for selective reactions, while the aryl bromide can participate in various palladium-catalyzed cross-coupling reactions.
| Molecular weight | 344.20 |
|---|---|
| Empirical formula | C14H18BrNO4 |
| Assay | ≥98.0% |
| 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 Boc-Phe(4-Br)-OH used for?
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Boc-Phe(4-Br)-OH is primarily used as a building block in peptide synthesis, chemical biology research, and medicinal chemistry for introducing a brominated phenylalanine residue into target molecules.
What is the CAS number and formula for Boc-Phe(4-Br)-OH?
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The CAS number is 62129-39-9, and the empirical formula (Hill notation) is C14H18BrNO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Boc-Phe(4-Br)-OH with an assay of ≥98.0%. This product is intended for research and development use and is not supplied as USP, BP, EP, or pharmaceutical grade.
How should Boc-Phe(4-Br)-OH be handled safely?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation or use a type N95 (US) or P1 (EN143) respirator filter. Refer to the Safety Data Sheet for detailed handling and hazard information.
Does Tech Serve Solutions export Boc-Phe(4-Br)-OH?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Boc-Phe(4-Br)-OH.
How can I request a sample or quote for Boc-Phe(4-Br)-OH?
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Please contact our sales team via the website or phone to request a sample or a formal quotation for Boc-Phe(4-Br)-OH.
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