O-Benzyl-L-tyrosine
O-Benzyl-L-tyrosine (CAS: 16652-64-5) is a derivative of the amino acid tyrosine with the molecular formula C6H5CH2OC6H4CH2CH(NH2)CO2H and a molecular weight of 271.31 g/mol. This compound serves as a valuable building block in chemical synthesis, particularly in peptide chemistry. It is also employed in research settings within cell biology and chemical biology due to its modified amino acid structure.
- IUPAC
- 4-Benzyloxy-L-phenylalanine

Peptide Synthesis
O-Benzyl-L-tyrosine is utilised as a protected amino acid derivative in the synthesis of peptides. The benzyl protection group on the tyrosine side chain allows for controlled coupling reactions, facilitating the construction of complex peptide sequences.
Chemical Synthesis
As a functionalised amino acid, it is a useful intermediate in organic synthesis for creating novel molecules. Its structure offers specific reactive sites for further chemical modifications and elaborations in multi-step synthetic routes.
Biochemical Research
This compound finds application in biochemical and chemical biology research, potentially as a tool to study enzyme activity or protein structure. Its modified tyrosine structure can be used to investigate biological pathways or to develop probes.
| Molecular weight | 271.31 |
|---|---|
| Linear formula | C6H5CH2OC6H4CH2CH(NH2)CO2H |
| Assay | ≥99.0% (NT) |
| Optical activity | [α]20/D −9.5±1°, c = 1% in acetic acid: water (4:1) |
| Melting point | 259 °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.
| Gene Information | human ... PPARG(5468) |
|---|
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 O-Benzyl-L-tyrosine used for?
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O-Benzyl-L-tyrosine is primarily used in peptide synthesis as a protected amino acid derivative and in general chemical synthesis as a versatile building block. It also finds application in biochemical and chemical biology research.
What are the CAS number and molecular formula for O-Benzyl-L-tyrosine?
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The CAS number for O-Benzyl-L-tyrosine is 16652-64-5, and its molecular formula is C6H5CH2OC6H4CH2CH(NH2)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies O-Benzyl-L-tyrosine with an assay of ≥99.0% (NT). This product is not supplied as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling precautions for O-Benzyl-L-tyrosine?
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Safety precautions include wearing eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. The material has a melting point of 259 °C (dec.) and is classified under WGK Germany 3.
How is O-Benzyl-L-tyrosine packed, shipped, and exported?
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O-Benzyl-L-tyrosine is carefully packed to ensure stability during transit. Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a sample or quote for O-Benzyl-L-tyrosine?
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To request a sample or a quote for O-Benzyl-L-tyrosine, please contact our sales team through the TSS website or designated contact channels.
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