Cefditoren Impurity 27 CAS CATO-C4X-135827
| CAS No. | CATO-C4X-135827 |
| Molecular Formula | C21H19N3O4S2 |
| Molecular Weight | 441.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Cefditoren Impurity 27 (C21H19N3O4S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Cefditoren Impurity 27 (CAS CATO-C4X-135827), a pharmacopoeial impurity reference standard (molecular formula C21H19N3O4S2, MW 441.52 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Cefditoren Impurity 27 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.
Physical & Chemical Properties
| Molecular Formula | C21H19N3O4S2 |
| Molecular Weight | 441.52 g/mol |
| Purity | >90% |
| 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 | 3 |
| Sulfur Atoms | 2 |
Related Cefditoren Standards
- Cefditoren Impurity 53 (CAS CATO-C4X-135853)
- Cefditoren (CAS 104145-95-1)
- Cefditoren Impurity 18 (CAS CATO-C4X-135818)
- Cefditoren Impurity 3 (CAS 145904-68-3)
- Cefditoren Impurity 32 (CAS CATO-C4X-135832)
- Cefditoren Impurity 60 (CAS CATO-C4X-135860)
- Cefditoren-d3 (CAS 2747915-67-7)
- Cefditoren Impurity 31 (CAS CATO-C4X-135831)
Recommended Standards
- Vilazodone (CAS 163521-12-8)
- Bisoprolol Impurity 113 (CAS CATO-C4X-1247113)
- Levofloxacin Impurity 32 (CAS 1329833-82-0)
- Bisoprolol Impurity 112 (CAS CATO-C4X-1247112)
- Leucine EP Impurity D (CAS 31872-98-7)
- Roxithromycin EP Impurity K (CAS CATO-C4X-130312)
- Lornoxicam impurity 90 (CAS CATO-C4X-201690)
- 1-[2-(methylamino)phenyl]ethanone (CAS 1859-75-2)
- tert-Butyl (1-(4-(hydroxymethyl)phenyl)pyrrolidin-3-yl)carbamate (CAS 889956-34-7)
- Risperidone EP Impurity M (CAS 84163-77-9)
- 1-(3-Fluoro-5-(isopentyloxy)phenyl)ethanol (CAS 1443329-60-9)
- 2-chloro-6-nitroquinoxaline (CAS 6272-25-9)
- 2,5-Dioxopyrrolidin-1-yl 4-palmitamidobutanoate (CAS 240133-34-0)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
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