Cefmetazole Impurity 29 CAS CATO-C4X-150729
| CAS No. | CATO-C4X-150729 |
| Molecular Formula | C15H16N7O5S3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 493.51 g/mol gives Cefmetazole Impurity 29 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefmetazole Impurity 29 (CAS CATO-C4X-150729, C15H16N7O5S3Na) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefmetazole Impurity 29 (C15H16N7O5S3Na) 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 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 493.51 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).
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 29 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 | C15H16N7O5S3 Na |
| Molecular Weight | 493.51 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefmetazole Standards
- Cefmetazole Impurity 20 (Chloroacetonitrile) (CAS 107-14-2)
- Cefmetazole Impurity 46 (CAS 17347-32-9)
- Cefmetazole Impurity 66 Sodium Salt (CAS 2714506-85-9 (free base))
- Cefmetazole Impurity 48 (CAS 310466-38-7)
- Cefmetazole Impurity 47 (CAS 4923-87-9)
- Cefmetazole side chain N2 (CAS 52069-54-2)
- Cefmetazole Impurity 21 (CAS 52069-55-3)
- Cefmetazole sodium Impurity 24 (CAS 53090-86-1)
Recommended Standards
- Parecoxib Impurity 8 (CAS 181696-35-5)
- Hydrocortisone EP Impurity M (CAS 566-35-8)
- Deoxycholic acid Impurity 45 (CAS CATO-C4X-335945)
- Vonoprazan Impurity 267 (CAS CATO-C4X-1020267)
- 2-ethyl-6-phenoxy-1,4-dihydroquinolin-4-one (CAS 1155599-28-2)
- Methyl 3-amino-1-propyl-1H-pyrazole-4-carboxylate (CAS 1795274-05-3)
- N-(1-cyanoethyl)-2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindoline-5-carboxamide (CAS 2629201-62-1)
- 3-Oxa-7-azabicyclo[3.3.1]Nonane-9-carboxylic acid (CAS 1375473-72-5)
- 2-(2-((Diethylamino)methyl)piperidin-1-yl)acetic acid (CAS 100158-79-0)
- Semaglutide impurity 44 (CAS CATO-C4X-222644)
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