Cefazolin Impurity 24 CAS CATO-C4X-157724
| CAS No. | CATO-C4X-157724 |
| Molecular Formula | C20H22N4O9S2 |
| Molecular Weight | 526.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefazolin Impurity 24 (CAS CATO-C4X-157724), a pharmacopoeial impurity reference standard (molecular formula C20H22N4O9S2, MW 526.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefazolin Impurity 24 (C20H22N4O9S2) 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 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 526.54 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Cefazolin Impurity 24 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 | C20H22N4O9S2 |
| Molecular Weight | 526.54 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 | 4 |
| Sulfur Atoms | 2 |
Related Cefazolin Standards
- Cefazolin Impurity 60 (CAS CATO-C4X-157760)
- Cefazolin Impurity 88 (CAS CATO-C4X-157788)
- Cefazolin Impurity 66 (CAS CATO-C4X-157766)
- Cefazolin Impurity 54 (CAS CATO-C4X-157754)
- Cefazolin Impurity 72 (CAS CATO-C4X-157772)
- Cefazolin Impurity 69 (CAS CATO-C4X-157769)
- Cefazolin Impurity 12 (CAS CATO-C4X-157712)
- Cefazolin Impurity 16 (CAS CATO-C4X-157716)
Recommended Standards
- Lyaloside (CAS 56021-85-3)
- Belumosudil Impurity 48 (CAS CATO-C4X-298848)
- Kanamycin Impurity N1 (CAS 51736-76-6)
- 1-(4-Bromo-3-fluorobenzyl)-4-((tert-butyldiphenylsilyl)oxy)piperidine (CAS 1704096-73-0)
- Benzbromarone Impurity 25 (CAS CATO-C4X-225025)
- Lumateperone impurity 26 P-Toluenesulfonate (CAS CATO-C4X-220126)
- Flurbiprofen Impurity 21 (Mixture of Diastereomers) (CAS 124635-84-3)
- 2-{[2-(2,4-dichlorophenoxy)phenyl]methylene}malononitrile (CAS 866040-84-8)
- (S)-3,4-Dihydroxybutanoic Acid (CAS 51267-44-8)
- 5-((2-Ethylpiperidin-1-yl)sulfonyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (CAS 874806-37-8)
- Cefpodoxime Proxetil Impurity 10 (CAS CATO-C4X-157910)
- 2-(((Benzyloxy)carbonyl)amino)-2,3-dimethylbutanoic acid (CAS 162536-54-1)
- 7-Nitroquinazolin-4(3H)-one (CAS 20872-93-9)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
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