Cefmetazole Impurity 22 CAS CATO-C4X-150722
| CAS No. | CATO-C4X-150722 |
| Molecular Formula | C15H17N7O5S3 |
| Molecular Weight | 471.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefmetazole Impurity 22 (C15H17N7O5S3) 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 supplies Cefmetazole Impurity 22 (CAS CATO-C4X-150722), a pharmacopoeial impurity reference standard (molecular formula C15H17N7O5S3, MW 471.53 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.
CATO manufactures Cefmetazole Impurity 22 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 | C15H17N7O5S3 |
| Molecular Weight | 471.53 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefmetazole Standards
- Cefmetazole Impurity 27 (CAS CATO-C4X-150727)
- Cefmetazole Impurity 28 (CAS CATO-C4X-150728)
- Cefmetazole Impurity 33 (CAS CATO-C4X-150733)
- Cefmetazole Impurity 38 (CAS CATO-C4X-150738)
- Cefmetazole Impurity 5 (CAS CATO-C4X-15075)
- Cefmetazole Impurity 62 (CAS CATO-C4X-150762)
- Cefmetazole Impurity 63 (CAS CATO-C4X-150763)
- Cefmetazole (CAS 56796-20-4)
Recommended Standards
- 2-Imino-10-methyl-1-(pyridin-3-ylmethyl)-3-tosyl-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 606960-71-8)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxydibenzo[b,d]furan-3-yl)acetamide (CAS 578745-65-0)
- MK 8033 (CAS 1001917-37-8)
- Etrasimod Impurity 30 (CAS 1643579-27-4)
- Mianserin Impurity 19 (CAS 62510-46-7)
- Atorvastatin impurity 161 (CAS CATO-C4X-1132161)
- Dyclonine Impurity 41 (CAS CATO-C4X-188141)
- 2-(5-Amino-1h-indol-1-yl)acetic acid (CAS 1250392-27-8)
- 5-Fluoro-1-methyl-1H-indazole-6-carbaldehyde (CAS 1286734-88-0)
- Rhenium heptasulfide, 99% 5GR (CAS 12038-67-4)
- Olanzapine Impurity 16 (CAS CATO-C4X-117816)
- 4-Chloro-8-methoxycinnoline (CAS 817209-48-6)
- Bisnorlipoic Impurity N1 (CAS 13125-44-5)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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