Ceftezole Impurity 2 CAS CATO-C4X-23092
| CAS No. | CATO-C4X-23092 |
| Molecular Formula | C13H12N8O4S3 |
| Molecular Weight | 440.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ceftezole Impurity 2 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.
Ceftezole Impurity 2 (CAS CATO-C4X-23092) is a certified pharmaceutical impurity reference standard with the molecular formula C13H12N8O4S3 and a molecular weight of 440.48 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ceftezole Impurity 2 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H12N8O4S3 |
| Molecular Weight | 440.48 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Ceftezole Standards
- Ceftezole (CAS 26973-24-0)
- Ceftezole Impurity 1 (CAS CATO-C4X-23091)
- Ceftezole Impurity 3 (CAS CATO-C4X-23093)
- Ceftezole Impurity 18 (CAS 43194-95-2)
- Ceftezole Impurity 7 (CAS 41223-92-1)
- Ceftezole Impurity 4 (CAS CATO-C4X-23094)
- Ceftezole Impurity 5 (CAS CATO-C4X-23095)
- Ceftezole Impurity 12 (CAS 289-06-5)
Recommended Standards
- 4,4'-(1E,1'E)-2,2'-(1-phenyl-1H-pyrazole-3,5-diyl)bis(ethene-2,1-diyl)bis(2-methoxyphenol) (CAS 1019110-87-2)
- 1022331-68-5 1,3-Bis(4-methylphenyl)-5-((4-ethoxyphenyl)methylene)-1,3-diazaperhydroine-2,4,6-trione MFCD04154240 (CAS 1022331-68-5)
- Glipizide Impurity 39 (CAS CATO-C4X-140739)
- [(2s,3r,4s,5r)-2-acetoxy-4-benzyloxy-5-(benzyloxymethyl)-5-vinyl-tetrahydrofuran-3-yl]acetate (CAS 1052725-34-4)
- Cefotaxime Impurity 62 (CAS CATO-C4X-120162)
- Glycyrrhizic Acid Impurity 28 (CAS CATO-C4X-253728)
- Clomifene Citrate EP Impurity A (CAS CATO-C4X-151216)
- 2,2',3,3',4,4'-Hexachlorodiphenyl Ether (CAS 71585-39-2)
- 3-Methyl 5-((tetrahydrofuran-2-yl)methyl) 4-(2,3-dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 222988-56-9)
- 2-(2-Aminoethyl)-4-methylisoindoline-1,3-dione (CAS 1823309-04-1)
- 9-Chloro-2-methyl-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one (CAS 882517-76-2)
- 6-Fluoro-2-methylbenzoxazole (CAS 312600-96-7)
- 2,6-Dimethyl-4-hydroxybenzaldehyde (CAS 102783-03-9)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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