Cefpodoxime Proxetil Impurity 10 CAS CATO-C4X-157910
| CAS No. | CATO-C4X-157910 |
| Molecular Formula | C21H27N5O10S2 |
| Molecular Weight | 573.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Cefpodoxime Proxetil Impurity 10 (CAS CATO-C4X-157910, C21H27N5O10S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Cefpodoxime Proxetil Impurity 10 (C21H27N5O10S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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 | C21H27N5O10S2 |
| Molecular Weight | 573.60 g/mol |
| Purity | >90% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefpodoxime Standards
- Cefpodoxime Impurity 48 (CAS CATO-C4X-157948)
- Cefpodoxime Impurity 50 (CAS CATO-C4X-157950)
- Cefpodoxime Proxetil Impurity 9 (CAS CATO-C4X-15799)
- Cefpodoxime Impurity 62 (CAS CATO-C4X-157962)
- Cefpodoxime Proxetil EP Impurity E (CAS 217803-89-9)
- Cefpodoxime Proxetil EP Impurity E (CAS CATO-C4X-157951)
- Cefpodoxime Proxetil EP Impurity F (CAS CATO-C4X-157953)
- Cefpodoxime Proxetil EP Impurity F (CAS 96680-30-7)
Recommended Standards
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- 1-(3-(4-(Methylsulfonyl)piperidin-1-yl)benzyl)-5-(3-(4-(trifluoromethoxy)phenyl)isoxazol-5-yl)pyridin-2(1H)-one (CAS 1571034-39-3)
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- (((1,1-Dioxidobenzo[b]thiophen-2-yl)methoxy)carbonyl)-L-alanine (CAS 197245-15-1)
- 4-(Difluoromethyl)thiophene-3-carboxylic acid (CAS 1783508-32-6)
- N-{4-[(2-Bromoacetyl)amino]phenyl}butanamide (CAS 886009-20-7)
- (4-((4-Chlorobenzyl)oxy)phenyl)hydrazine hydrochloride (CAS 1049745-69-8)
- 8-(4-Chlorophenyl)-8-oxooctanenitrile (CAS 898783-76-1)
- 1-((2S,3S,4R,5S)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4-(hydroxyimino)-3,4-dihydropyrimidin-2(1H)-one (Molnupiravir Impurity) (CAS 402725-23-9)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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