Cefamandole Impurity 23 CAS CATO-C4X-122123
| CAS No. | CATO-C4X-122123 |
| Molecular Formula | C19H18N6O6S2 |
| Molecular Weight | 490.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Cefamandole Impurity 23 (CAS CATO-C4X-122123) is a certified pharmaceutical impurity reference standard with the molecular formula C19H18N6O6S2 and a molecular weight of 490.51 g/mol.
Cefamandole Impurity 23 (C19H18N6O6S2) 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).
CATO manufactures Cefamandole Impurity 23 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 | C19H18N6O6S2 |
| Molecular Weight | 490.51 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefamandole Standards
- Cefamandole Impurity 12 (CAS CATO-C4X-122112)
- Cefamandole Impurity 24 (CAS CATO-C4X-122124)
- Cefamandole Impurity 6 (CAS CATO-C4X-12216)
- Cefamandole Impurity 11 (CAS CATO-C4X-122111)
- (S)-Cefamandole Impurity 26 (CAS CATO-C4X-122126)
- Cefamandole Open-Ring Impurity (CAS CATO-C4X-122127)
- Cefamandole EP Impurity C (CAS 36922-15-3)
- Cefamandole Oxide Impurity 15 (CAS CATO-C4X-122115)
Recommended Standards
- 4-Bromo-N-(2-chloro-4-iodophenyl)-2-fluorobenzenesulfonamide (CAS 1772774-60-3)
- Maribavir Impurity 13 (CAS CATO-C4X-300713)
- Proxyphylline Impurity 2 (CAS CATO-C4X-24402)
- Maribavir Impurity 11 (CAS CATO-C4X-300711)
- Roxadustat Impurity 126 (CAS CATO-C4X-2213126)
- Linagliptin Impurity 9 (CAS 668270-11-9)
- Dopamine Impurity 76 HCl (CAS 150031-65-5)
- (4-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(3-chlorophenyl)methanone (CAS 898757-80-7)
- Tadalafil Impurity 12 HCl (CAS 171596-44-4 (free base))
- 4-Chloro-6-(methoxymethyl)-2-(m-tolyl)pyrimidine (CAS 438249-83-3)
- Pitavastatin Impurity 135 (CAS CATO-C4X-1037135)
- 1-Phenyl-1,4-diazepan-5-one (CAS 55186-91-9)
- 3-(5-(3-(Dimethylamino)phenoxy)pyrimidin-2-ylamino)phenol 4350AF 956128-01-1 C18H18N4O2 (CAS 956128-01-1)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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