(S)-2-Piperidinone-6-carboxylic acid
Also known as: 6-Oxo-L-pipecolic acid, H-L-PON-OH, L-Pyrohomoglutamic acid, L-6-Oxo-pipecolinic acid, Pyro-L-alpha-aminoadipic acid, (S)-2-Piperidone-6-carboxylic acid, (S)-6-Oxo-2-piperidinecarboxylic acid, (2S)-6-Oxopiperidine-2-carboxylic acid, 6-Ketopiperidine-2-carboxylic acid, 2-Piperidinecarboxylic acid, 6-oxo-, (2S)-
(S)-2-Piperidinone-6-carboxylic acid (CAS 34622-39-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9NO3 and a molecular weight of 143.141 g/mol. Key properties include a melting point of 129-134ºC, a boiling point of 437.0±38.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 218.1±26.8 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 34622-39-4
- Jingsj CID
- J-1160685-2
- Molecular Formula
- C6H9NO3
- Molecular Weight
- 143.141 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 129-134ºC |
|---|---|
| Boiling Point | 437.0±38.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 218.1±26.8 °C |
| Exact Mass | 143.058243 |
| PSA | 66.40000 |
| LogP | -1.82 |
| Vapor Pressure | 0.0±2.3 mmHg at 25°C |
| Refractive Index | 1.499 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of (S)-2-Piperidinone-6-carboxylic acid?
The CAS number of (S)-2-Piperidinone-6-carboxylic acid is 34622-39-4.
What are the molecular formula and molecular weight of (S)-2-Piperidinone-6-carboxylic acid?
(S)-2-Piperidinone-6-carboxylic acid has molecular formula C6H9NO3 and molecular weight 143.141 g/mol.
Is (S)-2-Piperidinone-6-carboxylic acid hazardous?
(S)-2-Piperidinone-6-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of (S)-2-Piperidinone-6-carboxylic acid?
For (S)-2-Piperidinone-6-carboxylic acid, Upstream Products: L-2-Aminoadipic acid, Z-Lys(Boc)-OH, Nε-(tert-Butoxycarbonyl)-L-lysine; Downstream Products: (6S)-6-(hydroxymethyl)piperidin-2-one, Posatirelin.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(S)-2-Piperidinone-6-carboxylic acid (CAS 34622-39-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1160685-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.