Latamoxef Impurity 8 CAS 64076-52-4
| CAS No. | 64076-52-4 |
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Latamoxef Impurity 8 (CAS 64076-52-4, C9H8O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Latamoxef Impurity 8 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Latamoxef Standards
- Latamoxef Impurity 30 (CAS CATO-C4X-179830)
- Latamoxef Impurity 39 (CAS CATO-C4X-179839)
- Latamoxef Impurity 49 (CAS CATO-C4X-179849)
- Latamoxef Impurity 35 (CAS CATO-C4X-179835)
- Latamoxef Impurity 6 (CAS 78641-40-4)
- Latamoxef Impurity 37 (CAS CATO-C4X-179837)
- Latamoxef Impurity 29 (CAS CATO-C4X-179829)
- Latamoxef Impurity 45 (CAS CATO-C4X-179845)
Recommended Standards
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- Theophylline EP Impurity E (CAS 944-73-0)
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- Aripiprazole Impurity N4 (CAS 203395-84-0)
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- Etrasimod impurity 17 (CAS CATO-C4X-321417)
- 15,15-Diethoxy-2,2-dimethyl-3,16-dioxa-2,15-disilaoctadecane (CAS 75389-03-6)
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- N-Butyl-N-(1-methyl-1H-pyrrol-3-yl)acetamide (CAS 62187-94-4)
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