Avibactam Impurity 79 CAS 2687-43-6
| CAS No. | 2687-43-6 |
| Molecular Formula | C7H9NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Avibactam Impurity 79 (CAS 2687-43-6, C7H9NOHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C7H9NOHCl, Avibactam Impurity 79 contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 159.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C7H9NO HCl |
| Molecular Weight | 159.61 g/mol |
| Appearance | 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Avibactam Standards
- Avibactam Impurity 133 (CAS 1133931-73-3)
- Avibactam impurity 113 (CAS 115134-37-7)
- Avibactam Impurity 89 (CAS 1171080-45-7)
- Avibactam Impurity 22 (CAS 1174020-25-7)
- Avibactam Sodium Salt (CAS 1192491-61-4)
- Avibactam-13C5,15N Sodium Salt (CAS 1192491-61-4 (non-labelled))
- Avibactam Impurity 02 (CAS 1192500-31-4)
- Avibactam Impurity 56（2S,5R) (CAS 1192651-49-2)
Recommended Standards
- Abemaciclib Impurity 12 (CAS 1627082-92-1)
- Resmetirom impurity 85 (CAS CATO-C4X-291285)
- Imatinib Impurity 89 (CAS CATO-C4X-106889)
- 8-(2,6-Dimethoxyphenyl)-8-oxooctanoic acid (CAS 898792-53-5)
- H-Leu-Ser-p-nitro-Phe-Nle-Ala-Leu-OMe trifluoroacetate salt (CAS 99764-63-3)
- Vanadium(III) bromide 99% (CAS 13470-26-3)
- 4H,6H-Pyrrolo[1,2-a][4,1]benzoxazepine-4,6-dione (CAS 259269-45-9)
- Naphthalene-d8 (CAS 1146-65-2)
- (R)-1-[4-[6-Chloro-8-fluoro-7-(2-fluoro-6-hydroxyphenyl)-4-quinazolinyl]-1-piperazinyl]-2-propen-1-one (CAS 1698055-86-5)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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