L-Ornithine L-Aspartate Impurity 16 TFA Salt CAS CATO-C4X-253616
| CAS No. | CATO-C4X-253616 |
| Molecular Formula | C18H32N6O9 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), L-Ornithine L-Aspartate Impurity 16 TFA Salt meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
L-Ornithine L-Aspartate Impurity 16 TFA Salt (CAS CATO-C4X-253616) is a certified pharmaceutical impurity reference standard with the molecular formula C18H32N6O9C2HF3O2 and a molecular weight of 590.51 g/mol.
Based on its molecular formula C18H32N6O9C2HF3O2, L-Ornithine L-Aspartate Impurity 16 TFA Salt contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 590.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C18H32N6O9 C2HF3O2 |
| Molecular Weight | 590.51 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
Related L Standards
- DL-Ornithine hydrochloride (CAS 1069-31-4)
- L-Ornithine L-Aspartate Impurity 6 (CAS 1174925-92-8)
- L-Ornithine L-Aspartate Impurity 22 TFA Salt (CAS 1174925-92-8 (free base))
- Ornithine, N5- [imino(nitroamino)methyl]-, methyl ester, monohydrochloride (CAS 127788-67-4)
- L-Ornithine-<SUP>13</SUP>C<SC><SUB>5</SUB></SC>,<SUP>15</SUP>N<SUB>2</SUB> Hydrochloric acid Salt (CAS 1346617-00-2)
- L-Ornithine L-Aspartate Impurity 8 (CAS 14169-16-5)
- D-Ornithine monohydrochloride (CAS 16682-12-5)
- L-Ornithine Dimer (CAS 195868-13-4)
Recommended Standards
- Ticagrelor Impurity 1 (CAS 2096989-55-6)
- Dexmedetomidine Impurity 76 HCl (CAS CATO-C4X-123076)
- Difelikefalin Impurity 50 (CAS CATO-C4X-304150)
- Methyl 2-(4-Nitrophenyl)oxazole-4-carboxylate (CAS 1171126-87-6)
- Vildagliptin Impurity 48 (CAS CATO-C4X-110048)
- Ethanone, 1-(5-methyl-1h-pyrazolo[3,4-c]pyridin-1-yl)- (CAS 76006-01-4)
- 1-(Thiazol-5-yl)-N-(thiophen-2-ylmethyl)methanamine (CAS 1339384-12-1)
- (R)-1-(2,2,2-trifluoroethyl)pyrrolidin-3-amine (CAS 1568033-51-1)
- 4-Cyclopropoxy-6-ethylpicolinamide (CAS 1243289-33-9)
- Mast Cell Degranulating (MCD) Peptide (CAS 32908-73-9)
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