Cefprozil Impurity N1(Z-Cefprozil) CAS 121412-77-9
| CAS No. | 121412-77-9 |
| Molecular Formula | C18H19N3O5S |
| Molecular Weight | 389.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefprozil Impurity N1(Z-Cefprozil) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 389.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Cefprozil Impurity N1(Z-Cefprozil) (CAS 121412-77-9) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19N3O5S and a molecular weight of 389.43 g/mol.
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.
CATO manufactures Cefprozil Impurity N1(Z-Cefprozil) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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 |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefprozil Standards
- 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)
- Cefprozil EP Impurity K Mixture(Isomer 1,2,3,4) (CAS CATO-C4X-149226)
Recommended Standards
- Omeprazole acid methyl ester, 98% (CAS 120003-83-0)
- (4-ETHANESULFONYL-2,5-DIMETHYL-3-OXAZOL-2-YL-PHENYL)-(5-HYDROXY-1-METHYL-1H-PYRAZOL-4-YL)-METHANONE (CAS 1231550-52-9)
- 4-((4-(6-(1H-Imidazol-1-yl)pyrimidin-4-yl)piperazin-1-yl)sulfonyl)-3,5-dimethylisoxazole (CAS 1172469-06-5)
- (1-Ethyl-5-hydroxy-1H-pyrazol-4-yl)-(4-methanesulfonyl-2,5-dimethyl-3-oxazol-2-yl-phenyl)-methanone (CAS 1231565-55-1)
- Letermovir Impurity 24 (CAS CATO-C4X-291524)
- Nemonoxacin impurity 12 (CAS 2797066-53-4)
- Solifenacin EP impurity G (CAS 740780-79-4)
- N-(NBD-Aminohexanoyl)-D-erythro-sphingosine (CAS 94885-02-6)
- 3-((2,3-Dihydro-1h-inden-2-yl)amino)propan-1-ol (CAS 1049975-34-9)
- Atogepant Impurity 84 (CAS CATO-C4X-328584)
- 3-(5-bromothiophen-3-yl)pyridine (CAS 166450-99-3)
- Bis(trimethylsilyl) Methylphosphonate (CAS 18279-83-9)
- 6,7-Dichloro-2-methyl-3-trifluoromethylquinoxaline (CAS 143309-87-9)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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