Fmoc-β-Lys(Boc)-OH
Fmoc-β-Lys(Boc)-OH (CAS: 219967-68-7) is a protected amino acid derivative with the molecular formula C26H32N2O6. This compound is essential in chemical biology and synthesis, particularly for peptide chemistry and the development of unnatural amino acid derivatives. It features Fmoc and Boc protecting groups on its lysine side chain, facilitating controlled peptide elongation. Tech Serve Solutions supplies this high-purity chemical for research and development purposes.
- IUPAC
- (S)-6-(tert-Butoxycarbonylamino)-3-(fluoren-9-ylmethoxycarbonylamino)hexanoic acid,Nβ-Fmoc-Nϖ-Boc-L-β-lysine,Fmoc-L-β-HomoOrn(Boc)-OH
- Synonyms
- Nα-Fmoc-Nβ-Boc-L-β-lysine

Peptide Synthesis
Used as a building block in solid-phase or solution-phase peptide synthesis to incorporate a modified lysine residue. The Fmoc and Boc protecting groups allow for selective deprotection and coupling reactions.
Chemical Biology Research
Facilitates the study of protein structure-function relationships and the development of peptide-based therapeutics. It enables the synthesis of peptides with specific side-chain modifications for biological assays.
Unnatural Amino Acid Incorporation
Enables the synthesis of peptides containing unnatural amino acid analogues, expanding the chemical space for drug discovery and materials science applications.
Drug Discovery and Development
Serves as a key intermediate in the synthesis of novel peptide-based drug candidates. Its specific protecting group strategy aids in the efficient construction of complex peptide sequences.
| Molecular weight | 468.54 |
|---|---|
| Empirical formula | C26H32N2O6 |
| Assay | ≥98% (HPLC) |
| Optical activity | [α]/D -8.5±1.0°, c = 1 in chloroform |
| Storage temperature | 2-8°C |

Hazard statements
- H315Causes skin irritation
- H413May cause long-lasting harmful effects to aquatic life
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 38 |
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-β-Lys(Boc)-OH used for?
+
Fmoc-β-Lys(Boc)-OH is primarily used as a protected building block in chemical synthesis, especially for peptide chemistry and the creation of unnatural amino acid derivatives. It is valuable in chemical biology research and drug discovery for constructing modified peptides.
What are the CAS number and formula for Fmoc-β-Lys(Boc)-OH?
+
The CAS number for Fmoc-β-Lys(Boc)-OH is 219967-68-7, and its empirical formula is C26H32N2O6.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Fmoc-β-Lys(Boc)-OH with a minimum purity of ≥98% as determined by HPLC. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
How should Fmoc-β-Lys(Boc)-OH be handled safely?
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Fmoc-β-Lys(Boc)-OH is classified as a warning substance. It can cause skin irritation (H315) and may cause long-lasting harmful effects to aquatic life (H413). Appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves, should be used. Handle in a well-ventilated area.
How is Fmoc-β-Lys(Boc)-OH typically packed and shipped?
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Fmoc-β-Lys(Boc)-OH is stored at 2-8°C. TSS exports chemicals globally, ensuring appropriate packaging and documentation for international shipment in compliance with all regulations.
How can I request a sample or quote for Fmoc-β-Lys(Boc)-OH?
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To request a sample or a quote for Fmoc-β-Lys(Boc)-OH, please contact our sales department via the website or by phone. Provide the product name and CAS number (219967-68-7) in your inquiry.
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