Cefmetazole Impurity 5 CAS CATO-C4X-15075
| CAS No. | CATO-C4X-15075 |
| Molecular Formula | C15H17N7O5S3 |
| Molecular Weight | 471.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefmetazole Impurity 5 (C15H17N7O5S3) 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 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 471.53 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Cefmetazole Impurity 5 (CAS CATO-C4X-15075) is a certified pharmaceutical impurity reference standard with the molecular formula C15H17N7O5S3 and a molecular weight of 471.53 g/mol.
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.
As a certified reference material (CRM), Cefmetazole Impurity 5 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 | C15H17N7O5S3 |
| Molecular Weight | 471.53 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefmetazole Standards
- Cefmetazole Impurity 22 (CAS CATO-C4X-150722)
- Cefmetazole Impurity 27 (CAS CATO-C4X-150727)
- Cefmetazole Impurity 28 (CAS CATO-C4X-150728)
- Cefmetazole Impurity 33 (CAS CATO-C4X-150733)
- Cefmetazole Impurity 38 (CAS CATO-C4X-150738)
- Cefmetazole Impurity 62 (CAS CATO-C4X-150762)
- Cefmetazole Impurity 63 (CAS CATO-C4X-150763)
- Cefmetazole (CAS 56796-20-4)
Recommended Standards
- Baricitinib Impurity 37 (CAS 2055723-13-0)
- Orforglipron impurity 120 (CAS CATO-C4X-3234120)
- 2-Imino-10-methyl-1-(pyridin-3-ylmethyl)-3-tosyl-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 606960-71-8)
- 4-Benzhydryl-N-(4-(trifluoromethoxy)phenyl)piperazine-1-carbothioamide (CAS 1024200-01-8)
- Formoterol impurity 142 (CAS CATO-C4X-1525142)
- Lomefloxacin Impurity 8 (CAS 195259-12-2)
- Betamethasone Impurity 119 (CAS CATO-C4X-1437119)
- tert-Butyl 4-acetylbenzylcarbamate (CAS 79533-04-3)
- 3-(((4-Methyl-4H-1,2,4-triazol-3-yl)methyl)amino)thietane 1,1-dioxide (CAS 1870080-25-3)
- Methyl 4-bromo-2-chloro-5-methoxybenzoate (CAS 1427437-60-2)
- 5-Chloro-1-(2-fluorophenyl)pentan-1-one (CAS 487058-75-3)
- 4-(Dimethylamino)-3-fluorophenol (CAS 1243354-90-6)
- 1-(Pyrazin-2-yl)ethylamine (CAS 179323-60-5)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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