Cefpirome Impurity 43 CAS CATO-C4X-120743
| CAS No. | CATO-C4X-120743 |
| Molecular Formula | C27H30N8O12S2 |
| Molecular Weight | 722.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefpirome Impurity 43 (CAS CATO-C4X-120743), a pharmacopoeial impurity reference standard (molecular formula C27H30N8O12S2, MW 722.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefpirome Impurity 43 (C27H30N8O12S2) contains a nitrogen-containing heterocyclic scaffold, 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).
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), Cefpirome Impurity 43 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 | C27H30N8O12S2 |
| Molecular Weight | 722.70 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 2 |
Related Cefpirome Standards
- Cefpirome Impurity 25 (CAS CATO-C4X-120725)
- Cefpirome Impurity 23 (CAS CATO-C4X-120723)
- Cefpirome Impurity 32 (CAS CATO-C4X-120732)
- Cefpirome Impurity 34 (CAS CATO-C4X-120734)
- Cefpirome Impurity 35 (CAS CATO-C4X-120735)
- Cefpirome Impurity 50 (CAS CATO-C4X-120750)
- Cefpirome Impurity 29 (CAS CATO-C4X-120729)
- Cefpirome Impurity 24 (CAS CATO-C4X-120724)
Recommended Standards
- Azilsartan Impurity 35 (CAS CATO-C4X-109635)
- Raltegravir EP Impurity H (CAS 1391918-18-5)
- 5',5''-Bis(4-carboxyphenyl)-4'',6'-diethoxy-[1,1':3',1'':3'',1'''-quaterphenyl]-4,4'''-dicarboxylicacid (CAS 1931172-16-5)
- Etoposide EP Impurity F (CAS CATO-C4X-20246)
- Alectinib Impurity 59 (CAS CATO-C4X-283659)
- Dexlansoprazole Impurity 6 (CAS 1409978-52-4)
- Formoterol Impurity 69 (CAS 100865-09-6)
- 2-Butylquinoline-4-carbothioamide (CAS 62077-96-7)
- 5h,10h-Imidazo[1,2-b]isoquinoline-5,10-dione (CAS 36142-27-5)
- (E)-2-bromo-6-methyl-2-heptene (CAS 849676-28-4)
- ((1S,5S)-2-(DImethylamino)bicyclo[3.1.0]hexan-1-yl)methanol (CAS 2852766-25-5)
- Sparsentan (RE-021) (CAS 254740-64-2)
- (Z)-Ethyl 2-((3-chlorophenyl)amino)-5-(furan-2-ylmethylene)-4-oxo-4,5-dihydrothiophene-3-carboxylate (CAS 6089-97-0)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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