L-Pipecolic acid
Also known as: (S)-(-)-Pipecolinic acid, (S)-(-)-2-Piperidinecarboxylic acid, H-HoPro-OH, H-Homopro-OH, L-Homoproline, (2S)-piperidine-2-carboxylic acid, (2S)-piperidinium-2-carboxylate, L-Pipecolic acid zwitterion, L-pipecolate, Pipecolic acid (L-isomer), MFCD00005981
L-Pipecolic acid (CAS 3105-95-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H11NO2 and a molecular weight of 129.157 g/mol. Key properties include a melting point of 272ºC, a boiling point of 265.8±33.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 114.5±25.4 °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.
- 3105-95-1
- Jingsj CID
- J-1091320-9
- Molecular Formula
- C6H11NO2
- Molecular Weight
- 129.157 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 272ºC |
|---|---|
| Boiling Point | 265.8±33.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 114.5±25.4 °C |
| Exact Mass | 129.078979 |
| PSA | 49.33000 |
| LogP | 0.00 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.479 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Mihalik SJ, et al. Peroxisomal L-pipecolic acid oxidation is deficient in liver from Zellweger syndrome patients. Pediatr Res. 1989 May;25(5):548-52. |
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of L-Pipecolic acid?
The CAS number of L-Pipecolic acid is 3105-95-1.
What are the molecular formula and molecular weight of L-Pipecolic acid?
L-Pipecolic acid has molecular formula C6H11NO2 and molecular weight 129.157 g/mol.
Is L-Pipecolic acid hazardous?
L-Pipecolic 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 L-Pipecolic acid?
For L-Pipecolic acid, Upstream Products: L-Lysine, (S)-(-)-1-Cbz-2-piperidinecarboxylic acid, D-Lysine; Downstream Products: (2S)-1-(Phenylmethyl)-2-piperidinecarboxylic acid, (2S)-N-(2,6-Dimethylphenyl)-2-piperidinecarboxamide, (S)-(-)-1-Cbz-2-piperidinecarboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Pipecolic acid (CAS 3105-95-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091320-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.