Cefpirome Impurity 51 CAS CATO-C4X-120751
| CAS No. | CATO-C4X-120751 |
| Molecular Formula | C52H52N16O22S4 |
| Molecular Weight | 1381.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefpirome Impurity 51 (CAS CATO-C4X-120751), a pharmacopoeial impurity reference standard (molecular formula C52H52N16O22S4, MW 1381.32 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Cefpirome Impurity 51 (C52H52N16O22S4) is characterized by a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 51 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 | C52H52N16O22S4 |
| Molecular Weight | 1381.32 g/mol |
| Purity | 95% |
| 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) | 35.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 16 |
| Sulfur Atoms | 4 |
Related Cefpirome Standards
- Cefpirome Impurity 44 (CAS CATO-C4X-120744)
- Cefpirome Impurity 45 (CAS CATO-C4X-120745)
- Cefpirome Impurity 47 (CAS CATO-C4X-120747)
- Cefpirome Impurity 54 (CAS CATO-C4X-120754)
- Cefpirome Impurity 40 (CAS CATO-C4X-120740)
- Cefpirome Impurity 30 (CAS CATO-C4X-120730)
- Cefpirome Impurity 42 (CAS CATO-C4X-120742)
- Cefpirome Impurity 55 (CAS CATO-C4X-120755)
Recommended Standards
- Nociceptin (1-13) amide (CAS 178064-02-3)
- Pulsatilla saponin H (CAS 68027-14-5)
- Pulsatilloside E (CAS 366814-43-9)
- Vancomycin Didechloro Impurity (CAS 98510-30-6)
- Roxithromycin EP Impurity H (CAS 425365-65-7)
- Roxadustat Impurity 48 (CAS CATO-C4X-221348)
- Linagliptin Impurity N16 (CAS 88203-04-7)
- Tert-butyl 4-(benzylamino)-2-methylpiperidine-1-carboxylate (CAS 1284298-17-4)
- 4-Bromobicyclo[2.2.2]octane-1-carboxylic acid (CAS 1989-50-0)
- N-(3-Fluorophenyl)-3-formyl-N-methylbenzamide (CAS 168155-52-0)
- 3-{1-[2-(4-chlorophenoxy)acetyl]piperidin-4-yl}-4-(4-methylphenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775396-54-7)
- 1-Cyclopropyl-2-morpholinoethan-1-amine (CAS 1343839-30-4)
- tert-Butyl 2-(7-chlorothieno[3,2-b]pyridin-3-yl)acetate (CAS 2747283-69-6)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com