Oxacillin Impurity 29 CAS CATO-C4X-232129
| CAS No. | CATO-C4X-232129 |
| Molecular Formula | C19H20N4O4S |
| Molecular Weight | 400.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Oxacillin Impurity 29 (CAS CATO-C4X-232129), a pharmacopoeial impurity reference standard (molecular formula C19H20N4O4S, MW 400.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Oxacillin Impurity 29 (C19H20N4O4S) 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. 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.
CATO manufactures Oxacillin Impurity 29 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 | C19H20N4O4S |
| Molecular Weight | 400.45 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 Impurity 50 (CAS CATO-C4X-232150)
- Oxacillin Impurity 58 (CAS CATO-C4X-232158)
- Oxacillin Impurity 65 (CAS CATO-C4X-232165)
- Oxacillin Impurity 1 (CAS CATO-C4X-23211)
- Oxacillin Impurity 14 (CAS CATO-C4X-232114)
- Oxacillin Impurity 27 (CAS CATO-C4X-232127)
- Oxacillin Impurity N1 (CAS 37699-31-3)
- Oxacillin Impurity 18 (CAS CATO-C4X-232118)
Recommended Standards
- Penicillin Impurity 42 (CAS CATO-C4X-189942)
- Rosabulin (CAS 501948-05-6)
- N-(3,4-Dimethoxyphenyl)-2-((4-ethyl-5-(pyrazin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 585559-44-0)
- N-(2-Cyano-4,5-dimethoxyphenyl)-4-(furan-2-carbonyl)piperazine-1-carbothioamide (CAS 67817-56-5)
- Metoprolol Impurity 48 (CAS CATO-C4X-136748)
- Thiamine Impurity 15 (CAS 24941-82-0)
- Orforglipron Impurity 107 (CAS CATO-C4X-3234107)
- Thiamine (CAS 70-16-6)
- 2-Oxabicyclo[2.2.1]heptan-4-amine hydrochloride (CAS 2253632-53-8)
- Palbociclib Impurity 153 (CAS CATO-C4X-1125153)
- p-(1-Adamantyl)toluene (CAS 1459-55-8)
- 1-(2-Methyl-5,7-diphenylpyrazolo[1,5-a]pyridin-3-yl)ethanone (CAS 89193-10-2)
- (R)-3-aminoazetidin-2-one (CAS 98674-41-0)
- Peptide WE-14 (CAS 115136-18-0)
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