Cefprozil Impurity 55 CAS CATO-C4X-149255
| CAS No. | CATO-C4X-149255 |
| Molecular Formula | C15H14ClN3O5S |
| Molecular Weight | 383.81 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 383.81 g/mol gives Cefprozil Impurity 55 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefprozil Impurity 55 (CAS CATO-C4X-149255, C15H14ClN3O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefprozil Impurity 55 (C15H14ClN3O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 383.81 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C15H14ClN3O5S |
| Molecular Weight | 383.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefprozil Standards
- Cefprozil Impurity N1(Z-Cefprozil) (CAS 121412-77-9)
- Cefprozil (CAS 92665-29-7)
- Cefprozil Δ3 Isomer (CAS 1000980-59-5)
- Cefprozil EP Impurity K-Isomer 1 (CAS CATO-C4X-149216)
- Cefprozil (E)-Isomer (CAS 92676-86-3)
- Cefprozil EP Impurity K-Isomer 2 (CAS CATO-C4X-149222)
- Cefprozil EP Impurity K-Isomer 3 (CAS CATO-C4X-149223)
- Cefprozil EP Impurity K-Isomer 4 (CAS CATO-C4X-149224)
Recommended Standards
- Cefaclor Impurity 50 (CAS CATO-C4X-127050)
- 1-(Tert-butyl) 2-methyl (2S,4S)-4-(3-chloro-4-formylphenoxy)pyrrolidine-1,2-dicarboxylate (CAS 2442510-17-8)
- Cefaclor Impurity 49 (CAS CATO-C4X-127049)
- 2-(((6-Chloropyridin-3-yl)methyl)thio)-4-(trifluoromethyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 889947-49-3)
- Lenacapavir Impurity 5 (CAS CATO-C4X-32485)
- Dalbavancin Impurity 19 (CAS CATO-C4X-160219)
- Atracurium Impurity H (CAS CATO-C4X-1850107)
- (1S,3R)-3-(hydroxymethyl)cyclohexan-1-ol (CAS 15753-48-7)
- Decahydropyrimido[1,2-a]azepine (CAS 25739-48-4)
- Penehyclidine Impurity 3 (CAS 2091937-84-5)
- 2,4-dinitrophenylhydrazine phosphate solution (CAS 125038-14-4)
- (3S)-N,N-Dimethylpyrrolidin-3-amine hydrochloride (CAS 1360085-30-8)
- 4-Chloro-N-(3-fluoro-2-methylphenyl)benzamide (CAS 528844-84-0)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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