L-Ornithine L-Aspartate Impurity 6 CAS 1174925-92-8
| CAS No. | 1174925-92-8 |
| Molecular Formula | C9H17N3O5 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 247.25 g/mol gives L-Ornithine L-Aspartate Impurity 6 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
L-Ornithine L-Aspartate Impurity 6 (CAS 1174925-92-8) is a certified pharmaceutical impurity reference standard with the molecular formula C9H17N3O5 and a molecular weight of 247.25 g/mol.
Structurally, L-Ornithine L-Aspartate Impurity 6 (C9H17N3O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 247.25 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H17N3O5 |
| Molecular Weight | 247.25 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Related L Standards
- L-Ornithine L-Aspartate Impurity 3 (CAS 7327-72-2)
- L-Ornithine L-Aspartate Impurity 7 (CAS 886996-37-8)
- L-Ornithine L-Aspartate Impurity 8 (CAS 14169-16-5)
- L-Ornithine L-Aspartate Impurity 19 (CAS 60259-82-7)
- L-Ornithine Dimer (CAS 195868-13-4)
- L-Ornithine L-Aspartate Impurity 1 (CAS CATO-C4X-25361)
- D-Ornithine (CAS 348-66-3)
- L-Ornithine (CAS 70-26-8)
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