(S)-6-Oxo-2-piperidinecarboxylic acid
(S)-6-Oxo-2-piperidinecarboxylic acid (CAS 34622-39-4, C6H9NO3) is a heterocyclic organic compound with a molecular weight of 143.14 g/mol. This chiral building block is valuable in asymmetric synthesis and chemical synthesis. It serves as a key intermediate in the development of various complex molecules, particularly within the pharmaceutical and fine chemical industries. Its structural features make it a versatile component for constructing novel chemical entities.
- IUPAC
- 6-Oxo-L-pipecolic acid,(S)-2-Piperidone-6-carboxylic acid,L-Pyrohomoglutamic acid
- Synonyms
- 6-Oxo-L-pipecolic acid(S)-2-Piperidone-6-carboxylic acidL-Pyrohomoglutamic acid

Chiral Building Block in Asymmetric Synthesis
This compound is employed as a chiral synthon in asymmetric synthesis, enabling the creation of enantiomerically pure target molecules. Its defined stereochemistry is crucial for developing stereoselective routes in organic chemistry.
Intermediate for Pharmaceutical Development
Utilised in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates. Its piperidine ring structure is a common motif found in many biologically active compounds.
Reagent in Organic Chemistry
Serves as a versatile reagent for constructing more complex heterocyclic frameworks. It is suitable for various coupling reactions and derivatisations in fine chemical synthesis.
| Molecular weight | 143.14 |
|---|---|
| Empirical formula | C6H9NO3 |
| Assay | ≥95.0% (HPLC) |
| Impurities tested | ≤5.0% water |

Hazard statements
- 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, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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)-6-Oxo-2-piperidinecarboxylic acid used for?
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(S)-6-Oxo-2-piperidinecarboxylic acid is primarily used as a chiral building block in asymmetric synthesis and as an intermediate in chemical synthesis, particularly for pharmaceutical development.
What are the CAS number and formula for (S)-6-Oxo-2-piperidinecarboxylic acid?
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The CAS number is 34622-39-4, and the empirical formula is C6H9NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (S)-6-Oxo-2-piperidinecarboxylic acid with an assay of ≥95.0% (HPLC). This is a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.
What are the safety precautions for handling (S)-6-Oxo-2-piperidinecarboxylic acid?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. This compound is classified as a Warning, with hazards including skin irritation (H315), eye irritation (H319), and respiratory irritation (H335).
How is (S)-6-Oxo-2-piperidinecarboxylic acid packed and shipped?
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(S)-6-Oxo-2-piperidinecarboxylic acid is carefully packed according to international standards for chemical export and is shipped globally by Tech Serve Solutions.
How can I request a sample or quote?
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To request a sample or a quote for (S)-6-Oxo-2-piperidinecarboxylic acid, please contact the TSS sales department via our website or direct inquiry channels.
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