Cefcapene Impurity 28 CAS CATO-C4X-182428
| CAS No. | CATO-C4X-182428 |
| Molecular Formula | C23H29N5O8S2 |
| Molecular Weight | 567.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 567.64 g/mol gives Cefcapene Impurity 28 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Cefcapene Impurity 28 (CAS CATO-C4X-182428) is a certified pharmaceutical impurity reference standard with the molecular formula C23H29N5O8S2 and a molecular weight of 567.64 g/mol.
Structurally, Cefcapene Impurity 28 (C23H29N5O8S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 567.64 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C23H29N5O8S2 |
| Molecular Weight | 567.64 g/mol |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefcapene Standards
- Cefcapene Pivoxil (CAS 105889-45-0)
- (E)-Cefcapene Pivoxil (CAS CATO-C4X-182410)
- Δ2-Cefcapene Pivoxil (CAS CATO-C4X-18244)
- Cefcapene Impurity 78 (CAS CATO-C4X-182478)
- Cefcapene Impurity 18 (CAS CATO-C4X-182418)
- Cefcapene Impurity 19 (CAS CATO-C4X-182419)
- Cefcapene Impurity 46 (CAS CATO-C4X-182446)
- Cefcapene Impurity 74 (CAS CATO-C4X-182474)
Recommended Standards
- Irinotecan Impurity 51 (CAS 2944102-98-9)
- (3aR,8aR)-N,N-Diethyltetrahydro-2,2-dimethyl-4,4,8,8-tetraphenyl-1,3-dioxolo[4,5-e][1,3,2]dioxaphosphepin-6-amine (CAS 946514-47-2)
- Benzyl 7-(3,4-dimethoxyphenyl)-4-(4-(methoxycarbonyl)phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 494194-22-8)
- Baloxavir Impurity 115 (CAS CATO-C4X-2108115)
- Ibrutinib Impurity 166 (CAS CATO-C4X-1064166)
- Febuxostat Impurity 46 (CAS 144060-97-9)
- Tizanidine Impurity 42 (CAS CATO-C4X-144542)
- Thiazole-4,5-dicarbonitrile (CAS 98027-78-2)
- Estetrol Impurity 2 (CAS CATO-C4X-32502)
- 1-Ethyl-2-hydrazinyl-1H-benzo[d]imidazole (CAS 90562-75-7)
- TRH-AMC (CAS 190836-86-3)
- 8-Hydroxyquinoline-3-carboxylic acid (CAS 911109-16-5)
- 1-Boc-7-Benzyloxy-3-bromoindole (CAS 914349-40-9)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
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