Ethyl (S)-1-Boc-4-oxopiperidine-2-carboxylate
Ethyl (S)-1-Boc-4-oxopiperidine-2-carboxylate (CAS: 180854-44-8; Formula: C13H21NO5; MW: 271.31) is a chiral heterocyclic building block used in asymmetric synthesis and chemical research. This Boc-protected piperidine derivative offers a valuable starting point for creating complex molecular architectures. Its stereospecific nature and functional handles make it an important intermediate in the development of novel chemical entities and pharmaceutical candidates. Available from Tech Serve Solutions in high purity for demanding applications.
- IUPAC
- Ethyl (S)-N-(tert-butoxycarbonyl)-4-oxo-2-pipecolate
- Synonyms
- Ethyl (S)-N-(tert-butoxycarbonyl)-4-oxo-2-pipecolate

Asymmetric Synthesis
Serves as a chiral precursor in stereoselective synthetic routes, enabling the construction of enantiomerically enriched molecules. Its defined stereochemistry is crucial for building complex chiral targets.
Pharmaceutical Intermediate
A key building block in the synthesis of active pharmaceutical ingredients (APIs). Its piperidine core is prevalent in many drug scaffolds, facilitating the development of new therapeutic agents.
Heterocyclic Chemistry
Used as a versatile synthon in the preparation of diverse heterocyclic compounds. The presence of the oxo group and Boc protection allows for selective functionalization and ring modifications.
Organic Synthesis Research
A valuable reagent for academic and industrial research laboratories exploring novel synthetic methodologies and target molecule synthesis. Enables exploration of new chemical space.
| Molecular weight | 271.31 |
|---|---|
| Empirical formula | C13H21NO5 |
| Assay | 97% |
| Density | 1.079 g/mL at 25 °C |
| Refractive index | n20/D 1.464 |
| Optical activity | [α]22/D −12.0°, c = 0.5 in chloroform |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| 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 Ethyl (S)-1-Boc-4-oxopiperidine-2-carboxylate used for?
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This compound is primarily used as a chiral building block in asymmetric synthesis and as an intermediate in the development of new chemical entities, particularly in pharmaceutical research.
What are the CAS number and chemical formula?
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The CAS number is 180854-44-8, and the chemical formula is C13H21NO5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should Ethyl (S)-1-Boc-4-oxopiperidine-2-carboxylate be handled safely?
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This compound is classified as an irritant (H319). Handle with appropriate personal protective equipment, including gloves and eye protection, and avoid contact with skin and eyes. Ensure good ventilation. In case of contact, follow P305 + P351 + P338 procedures.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packs and ships this chemical according to international regulations for hazardous materials, ensuring secure transport for domestic and export orders.
How can I request a sample or quote?
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To request a sample or a quote, please contact our sales department through the website or by phone, providing the product name and CAS number.
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