Cefmetazole Impurity 74 CAS CATO-C4X-150774
| CAS No. | CATO-C4X-150774 |
| Molecular Formula | C29H32N10O10S4 |
| Molecular Weight | 808.89 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cefmetazole Impurity 74 (CAS CATO-C4X-150774, C29H32N10O10S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C29H32N10O10S4, Cefmetazole Impurity 74 contains a nitrogen-containing heterocyclic scaffold, 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 808.89 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C29H32N10O10S4 |
| Molecular Weight | 808.89 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 4 |
Related Cefmetazole Standards
- Cefmetazole Impurity 69 (CAS CATO-C4X-150769)
- Cefmetazole Impurity 68 (CAS CATO-C4X-150768)
- Cefmetazole Impurity 67 (CAS CATO-C4X-150767)
- Cefmetazole Impurity 70 (CAS CATO-C4X-150770)
- Cefmetazole Impurity 72 (CAS CATO-C4X-150772)
- Cefmetazole Impurity 71 (CAS CATO-C4X-150771)
- Cefmetazole Impurity 73 (CAS CATO-C4X-150773)
- Cefmetazole Impurity 32 (CAS CATO-C4X-150732)
Recommended Standards
- Ceftriaxone Impurity 23 (CAS CATO-C4X-116323)
- N2-DMF-9-(2-deoxy-5-O-DMT-β-D-ribofuranosyl)purine 3-CE phosphoramidite (CAS 178925-41-2)
- Apixaban Impurity 98 (CAS 1998079-13-2)
- 27-(demethyl) Rifampicin (CAS CATO-C4X-145612)
- Azelastine impurity 53 (CAS CATO-C4X-139653)
- Cefmetazole Impurity 13 (CAS CATO-C4X-150713)
- Arotinolol Impurity 17 (CAS CATO-C4X-185417)
- Methyl-d (CAS 41251-37-0)
- 2-(1,3-Dithian-2-ylidene)-3-oxobutanoic acid (CAS 682360-46-9)
- Methyltetrazine-amido-PEG7-azide (CAS 2112731-46-9)
- 4-Chloro-2,3-dimethylbenzaldehyde (CAS 1349716-28-4)
- LysoPE(22:6/0:0) (CAS CATO-C4X-31344)
- Ethyl 2-amino-4-(4-iodo-1h-pyrazol-1-yl)butanoate (CAS 1342398-66-6)
- Semaglutide (CAS 910463-68-2（free base）)
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