Ornidazole Impurity 73 CAS CATO-C4X-133173
| CAS No. | CATO-C4X-133173 |
| Molecular Formula | C9H12ClN3O4 |
| Molecular Weight | 261.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ornidazole Impurity 73 (C9H12ClN3O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a process- or degradation-related impurity, Ornidazole Impurity 73 (CAS CATO-C4X-133173, C9H12ClN3O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C9H12ClN3O4 |
| Molecular Weight | 261.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ornidazole Standards
- Ornidazole Impurity 31 (CAS 57939-59-0)
- Ornidazole Impurity 92 (CAS 1685317-97-8)
- Ornidazole Impurity 15 (CAS 105687-87-4)
- Ornidazole Impurity 93 (CAS CATO-C4X-133193)
- Ornidazole Impurity 83 (CAS CATO-C4X-133183)
- Ornidazole Impurity 61 (CAS CATO-C4X-133161)
- Ornidazole Impurity 100 (CAS CATO-C4X-1331100)
- Ornidazole Impurity 77 (CAS CATO-C4X-133177)
Recommended Standards
- 3-(3-Chloro-4-methylphenyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1082366-91-3)
- Neratinib Impurity 38 (CAS 2240142-43-0)
- 3-[(2-Chlorophenyl)methyl]-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 119222-35-4)
- Alogliptin Impurity 44 (CAS 865758-95-8)
- Erlotinib impurity 25 (CAS 207726-02-6)
- Lacosamide EP Impurity E(R-Isomer) (CAS 175481-39-7)
- Osimertinib Impurity 23 (CAS CATO-C4X-204523)
- Fmoc-Homophe-OH (CAS 132684-59-4)
- methyl 4-oxopyran-3-carboxylate (CAS 184719-44-6)
- 4-Hydroxy-1H-benzo[d]imidazole-2-carboxylic acid (CAS 910026-61-8)
- VApreotide (acetate) (CAS 849479-74-9)
- 2-Butenedioic acid (2E)-, polymer with 1,3-isobenzofurandione and 1,2-propanediol (CAS 25719-91-9)
- 3-Chloro-2-(3-(trifluoromethyl)-1H-pyrazol-1-yl)pyridine (CAS 438450-38-5)
- Hexapeptide-9 (CAS 885024-94-2)
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