Ampicillin Impurity 80 CAS CATO-C4X-144380
| CAS No. | CATO-C4X-144380 |
| Molecular Formula | C9H12N2O5S |
| Molecular Weight | 260.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Ampicillin Impurity 80 (CAS CATO-C4X-144380, C9H12N2O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ampicillin Impurity 80 (C9H12N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 260.27 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C9H12N2O5S |
| Molecular Weight | 260.27 g/mol |
| Purity | 97%+ |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ampicillin Standards
- Ampicillin Impurity 85 (CAS CATO-C4X-144385)
- Ampicillin Impurity 52 (CAS CATO-C4X-144352)
- Ampicillin Impurity Ⅱ (CAS 26280-46-6)
- Ampicillin Impurity 101 (CAS CATO-C4X-1443101)
- Ampicillin EP Impurity G (CAS 31485-02-6)
- Ampicillin Impurity 96 (CAS 35039-72-6)
- Ampicillin Impurity 74 (CAS CATO-C4X-144374)
- Ampicillin Impurity 45 (CAS 336870-02-1)
Recommended Standards
- Posaconazole Impurity 45 (CAS CATO-C4X-141845)
- Cefpodoxime Proxetil Impurity 40 (CAS 911000-43-6)
- Isavuconazole Impurity 113 (CAS CATO-C4X-1236113)
- 8-Hydroxypenicillin (CAS CATO-C4X-189960)
- Vardenafil Impurity 31 (CAS CATO-C4X-101731)
- Sofosbuvir Impurity 71 (CAS CATO-C4X-105271)
- Ivabradine Impurity 24 (CAS CATO-C4X-111924)
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