(S)-3-(Boc-amino)-5-hexenoic acid
(S)-3-(Boc-amino)-5-hexenoic acid (CAS: 270263-03-1, C11H19NO4) is a chiral building block with a molecular weight of 229.27 g/mol. This protected amino acid derivative features a terminal alkene and a Boc-protected amine, making it valuable in asymmetric synthesis. It is primarily used as an intermediate in the synthesis of complex organic molecules, peptides, and in chemical biology research.
- IUPAC
- Boc-(S)-3-amino-5-hexenoic acid
- Synonyms
- Boc-(S)-3-amino-5-hexenoic acid

Asymmetric Synthesis
Serves as a chiral building block in the stereoselective synthesis of complex organic molecules, pharmaceuticals, and natural products. Its defined stereochemistry at the alpha-carbon is crucial for creating enantiomerically pure compounds.
Peptide Chemistry
Utilised in the construction of peptides, particularly those incorporating unnatural amino acid residues. The Boc protecting group facilitates controlled peptide coupling reactions.
Chemical Biology and Drug Discovery
Employed as a versatile intermediate for designing and synthesising novel biologically active compounds. Its functional groups allow for further modifications and conjugations.
Organic Building Block
Acts as a key starting material or intermediate in multi-step organic synthesis pathways, enabling access to diverse molecular architectures.
| Molecular weight | 229.27 |
|---|---|
| Empirical formula | C11H19NO4 |
| Assay | ≥97.5% (HPLC)98% |
| Optical activity | [α]/D +20±1°, c = 1 in ethanol |
| Optical purity | enantiomeric excess: ≥99.0% |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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 (S)-3-(Boc-amino)-5-hexenoic acid used for?
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This compound is primarily used as a chiral building block in asymmetric synthesis, for peptide chemistry, in chemical biology research, and as a general organic building block for complex molecule synthesis.
What is the CAS number and molecular formula for (S)-3-(Boc-amino)-5-hexenoic acid?
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The CAS number is 270263-03-1 and the molecular formula is C11H19NO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of ≥97.5% (HPLC) or 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should (S)-3-(Boc-amino)-5-hexenoic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, face shields, and gloves. Avoid breathing dust. This compound is classified with Warning signal word and has hazard statements H302, H315, H319, H335, indicating it is harmful if swallowed, causes skin irritation, causes serious eye irritation, and may cause respiratory irritation.
How is (S)-3-(Boc-amino)-5-hexenoic acid packed, shipped, and exported?
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This product is packed according to industry standards for fine chemicals, ensuring safe transport and export globally by Tech Serve Solutions.
How can I request a sample or quote for (S)-3-(Boc-amino)-5-hexenoic acid?
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Please contact our sales team via the website or direct email to request a sample or a formal quotation.
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