Oxacillin Impurity 44 CAS CATO-C4X-232144
| CAS No. | CATO-C4X-232144 |
| Molecular Formula | C19H20N4O6S |
| Molecular Weight | 432.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Oxacillin Impurity 44 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.
Oxacillin Impurity 44 (CAS CATO-C4X-232144) is a certified pharmaceutical impurity reference standard with the molecular formula C19H20N4O6S and a molecular weight of 432.45 g/mol.
Oxacillin Impurity 44 (C19H20N4O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C19H20N4O6S |
| Molecular Weight | 432.45 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 | 1 |
Related Oxacillin Standards
- Oxacillin dioxamide (CAS CATO-C4X-232130)
- Oxacillin Impurity 12 (CAS CATO-C4X-232112)
- Oxacillin Impurity 45 (CAS CATO-C4X-232145)
- Oxacillin Impurity 56 (CAS CATO-C4X-232156)
- Oxacillin Impurity 3 (CAS CATO-C4X-23213)
- Oxacillin Impurity 59 (CAS CATO-C4X-232159)
- Oxacillin EP Impurity G (CAS CATO-C4X-232121)
- Oxacillin EP Impurity G (CAS 724695-30-1)
Recommended Standards
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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