Fmoc-Bpa-OH
Fmoc-4-benzoyl-L-phenylalanine (CAS: 117666-96-3) is a protected unnatural amino acid derivative with the molecular formula C31H25NO5. This compound serves as a valuable building block in chemical synthesis, particularly within peptide chemistry and chemical biology research. Its structure incorporates a benzoyl group, offering unique properties for incorporation into peptides and other complex organic molecules.
- IUPAC
- Fmoc-4-benzoyl-L-phenylalanine

Peptide Synthesis
Utilised as a modified amino acid in solid-phase or solution-phase peptide synthesis to introduce specific structural or functional elements. Its Fmoc protection allows for orthogonal deprotection strategies.
Chemical Biology
Incorporated into biomolecules or used in the development of probes for studying biological processes. The benzoyl moiety can introduce photophysical properties or act as a specific interaction site.
Unnatural Amino Acid Research
Serves as a key intermediate for creating peptides with non-standard amino acid residues, enabling the exploration of novel peptide structures and functions.
Organic Synthesis Intermediate
Acts as a chiral building block in the synthesis of complex organic molecules where a protected phenylalanine derivative with a benzoyl substituent is required.
| Molecular weight | 491.53 |
|---|---|
| Empirical formula | C31H25NO5 |
| Assay | ≥98.0% |
| Storage temperature | 2-8°C |
| 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 Fmoc-Bpa-OH used for?
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Fmoc-4-benzoyl-L-phenylalanine (CAS: 117666-96-3) is primarily used as a building block in peptide synthesis, chemical biology research, and the development of unnatural amino acid derivatives for organic synthesis.
What is the CAS number and formula for Fmoc-Bpa-OH?
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The CAS number is 117666-96-3 and the molecular formula is C31H25NO5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fmoc-4-benzoyl-L-phenylalanine with an assay of ≥98.0%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Fmoc-Bpa-OH be handled and stored?
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Handle with appropriate personal protective equipment including eyeshields and gloves. Store at 2-8°C to maintain stability. Refer to the safety data sheet for comprehensive handling information.
Is Fmoc-Bpa-OH a controlled substance?
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The provided data does not indicate that Fmoc-4-benzoyl-L-phenylalanine (CAS: 117666-96-3) is a controlled substance.
How can I request a sample or quote for Fmoc-Bpa-OH?
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Please contact our sales department via our website or direct inquiry to request a quotation or sample of Fmoc-4-benzoyl-L-phenylalanine.
How is Fmoc-Bpa-OH packed and exported?
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Fmoc-4-benzoyl-L-phenylalanine is carefully packed according to international shipping regulations and exported globally by Tech Serve Solutions.
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