Ceftaroline Fosamil Impurity 20 CAS CATO-C4X-148320
| CAS No. | CATO-C4X-148320 |
| Molecular Formula | C22H21N8O8PS4 |
| Molecular Weight | 684.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a phosphate ester group, a hydroxyl group, an ether linkage, Ceftaroline Fosamil Impurity 20 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 684.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Ceftaroline Fosamil Impurity 20 (CAS CATO-C4X-148320) is a certified pharmaceutical impurity reference standard with the molecular formula C22H21N8O8PS4 and a molecular weight of 684.68 g/mol.
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.
As a certified reference material (CRM), Ceftaroline Fosamil Impurity 20 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 | C22H21N8O8PS4 |
| Molecular Weight | 684.68 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 4 |
Related Ceftaroline Standards
- Ceftaroline Fosamil Impurity 7 (CAS 229016-73-3)
- Ceftaroline Fosamil Impurity 19 (CAS 953037-68-8)
- Ceftaroline Fosamil Impurity 24 (CAS CATO-C4X-148324)
- Ceftaroline Impurity 4 (CAS CATO-C4X-14834)
- Ceftaroline Impurity 12 (CAS 400827-68-1)
- Ceftaroline Impurity 15 (CAS CATO-C4X-148315)
- Ceftaroline Impurity 6 (CAS 1286218-72-1)
- Ceftaroline Impurity 16 (CAS CATO-C4X-148316)
Recommended Standards
- Yadanzioside A (CAS 95258-15-4)
- N-[4-(Trifluoromethoxy)phenyl]-2-{[4-({4-[({[4-(trifluoromethoxy)phenyl]carbamoyl}methyl)sulfanyl]phenyl}sulfanyl)phenyl]sulfanyl}acetamide (CAS 882079-20-1)
- Clemastanin B (CAS 112747-98-5)
- N,N′-1,2-Phenylenebis[2-(diphenylphosphino)benzamide] (CAS 659727-33-0)
- Amlexanox Impurity 2 (CAS CATO-C4X-21762)
- Piperazine impurity 49 (CAS 3029270-07-0)
- Tadalafil Impurity 168 (CAS CATO-C4X-1087168)
- Tert-butyl (S)-2-(cyanomethyl)morpholine-4-carboxylate (CAS 2091029-57-9)
- Argatroban Impurity 113 (Mixture of Diastereomers) (CAS CATO-C4X-1007113)
- 3-(3-Ethyl-1-methyl-1h-1,2,4-triazol-5-yl)propan-1-amine (CAS 1341927-12-5)
- Methyl (2R,3S)-3-phenylpyrrolidine-2-carboxylate (CAS 2248338-16-9)
- (R)-Modafinil EP Impurity A (CAS 112111-45-2)
- 1-(4-Ethoxy-1H-pyrazolo[3,4-b]pyridin-5-yl)ethanone (CAS 60868-78-2)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
Why CATO?
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