Cefaclor EP Impurity A CAS 875-74-1
| CAS No. | 875-74-1 |
| Molecular Formula | C8H9NO2 |
| Molecular Weight | 151.16 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 151.16 g/mol gives Cefaclor EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefaclor EP Impurity A (CAS 875-74-1, C8H9NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefaclor EP Impurity A (C8H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 151.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Cefaclor EP Impurity A 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 | C8H9NO2 |
| Molecular Weight | 151.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Cefaclor Standards
- Cefaclor Impurity 9 (CAS 6485-67-2)
- Cefaclor EP Impurity F (CAS 2882-18-0)
- Cefaclor Impurity 37 (CAS 21746-02-1)
- Cefaclor Impurity 57 (CAS CATO-C4X-127057)
- Cefaclor Degradation A Impurity(H-D-Phg-Gly-OH) (CAS 6453-64-1)
- Cefaclor Impurity 46 (CAS 134624-91-2&6453-64-1 (mixture))
- Cefaclor Impurity 11 (CAS 51795-31-4)
- Cefaclor Impurity 62 (CAS CATO-C4X-127062)
Recommended Standards
- Nilotinib Hydrochloride Monohydrate EP Impurity C (CAS 2458-12-0)
- Pregabalin Impurity 63 (CAS 7214-61-1)
- Paracetamol EP Impurity G (CAS 34523-34-7)
- Atenolol EP Impurity A (CAS 17194-82-0)
- Selexipag Impurity 12 (CAS 18591-57-6)
- Etrasimod Impurity 55 (CAS CATO-C4X-321455)
- Moxifloxacin impurity 167 (CAS CATO-C4X-1074167)
- Relugolix Impurity 47 (CAS CATO-C4X-242947)
- 3,4-Dichloro-N-(4,6-diphenylpyrimidin-2-yl)benzamide (CAS 820961-62-4)
- 7-(2-Fluorophenyl)-7-oxoheptanenitrile (CAS 898767-39-0)
- 1-bromo-3-(2-bromoethoxy)-5-fluorobenzene (CAS 1503274-86-9)
- Heptapeptide-6 (CAS CATO-CPTD788823)
- N-benzyl-1-(1-methyl-1H-imidazol-2-yl)methanamine (CAS 474448-87-8)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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