L-Ornithine
Also known as: Ornithine, (2S)-2,5-Diaminopentanoic acid, (S)-2,5-Diaminovaleric acid, 5-Amino-L-norvaline, Arginine EP Impurity C, H-Orn-OH, (+)-S-Ornithine, L-(+)-Ornithine, Orn, MFCD00242584
L-Ornithine (CAS 70-26-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H12N2O2 and a molecular weight of 132.16 g/mol. Key properties include a melting point of 140ºC, a boiling point of 308.7±32.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 140.5±25.1 °C. It is listed by 1 supplier, from 264.00 to 440.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 70-26-8
- Jingsj CID
- J-1123512-5
- Molecular Formula
- C5H12N2O2
- Molecular Weight
- 132.16 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 25g | ¥6,600.00 | $39.51 /gBest ¥264.00/g CNY | CN China MOQ 25g | |
Made to Order | 99% 5g | ¥2,200.00 | $65.84 /g ¥440.00/g CNY | CN China MOQ 5g |
Physicochemical Properties
| Melting Point | 140ºC |
|---|---|
| Boiling Point | 308.7±32.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 140.5±25.1 °C |
| Exact Mass | 132.089874 |
| PSA | 89.34000 |
| LogP | -0.96 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.508 |
| Storage Conditions | 2~8°C |
| SMILES | C(C[C@@H](C(=O)O)N)CN |
| InChIKey | AHLPHDHHMVZTML-BYPYZUCNSA-N |
| InChI | 1S/C5H12N2O2/c6-3-1-2-4(7)5(8)9/h4H,1-3,6-7H2,(H,8,9)/t4-/m0/s1 |
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of L-Ornithine?
The CAS number of L-Ornithine is 70-26-8.
What are the molecular formula and molecular weight of L-Ornithine?
L-Ornithine has molecular formula C5H12N2O2 and molecular weight 132.16 g/mol.
Which suppliers offer L-Ornithine?
1 supplier(s) listed; reference unit price ¥264.00–440.00 /g.
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-Ornithine (CAS 70-26-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1123512-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.