Cefprozil Impurity 51 CAS CATO-C4X-149251
| CAS No. | CATO-C4X-149251 |
| Molecular Formula | C18H19N3O5S |
| Molecular Weight | 389.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefprozil Impurity 51 (CAS CATO-C4X-149251), a pharmacopoeial impurity reference standard (molecular formula C18H19N3O5S, MW 389.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H19N3O5S, Cefprozil Impurity 51 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 389.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 certified reference material (CRM), Cefprozil Impurity 51 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H19N3O5S |
| Molecular Weight | 389.43 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| 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
- Cefprozil (Z)-isomer Impurity 48 (CAS CATO-C4X-149248)
- Cefprozil Impurity 54 (CAS CATO-C4X-149254)
- Cefprozil (Z)-Isomer Impurity 44 (CAS CATO-C4X-149244)
- Baricitinib Impurity 103 (CAS CATO-C4X-2260103)
- Lacosamide Impurity 14 (CAS 1219042-50-8)
- Pramipexole EP Impurity A (CAS 106092-09-5)
- Cefditoren Impurity 49 (CAS CATO-C4X-135849)
- (2-Bromo-5-(difluoromethyl)-3-nitropyridin-4-yl)methanol (CAS 1806871-27-1)
- Canagliflozin Impurity 87 (CAS CATO-C4X-112387)
- 2-Chloro-N-isobutylpyrimidin-4-amine (CAS 1201176-19-3)
- 3,4-Dichloro-1,8-naphthyridine (CAS 72235-40-6)
- Ethyl quinuclidine-2-carboxylate hydrochloride (CAS 1255098-58-8)
- 2,5-Dimethylhexan-1-ol (CAS 6886-16-4)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com