Pirfenidone Impurity 48 CAS CATO-C4X-222948
| CAS No. | CATO-C4X-222948 |
| Molecular Formula | C12H13NO2 |
| Molecular Weight | 203.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 203.24 g/mol gives Pirfenidone Impurity 48 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Pirfenidone Impurity 48 (CAS CATO-C4X-222948) is a certified pharmaceutical impurity reference standard with the molecular formula C12H13NO2 and a molecular weight of 203.24 g/mol.
Structurally, Pirfenidone Impurity 48 (C12H13NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 203.24 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Pirfenidone Impurity 48 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 | C12H13NO2 |
| Molecular Weight | 203.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pirfenidone Standards
- Pirfenidone Impurity 10 (CAS CATO-C4X-222910)
- Pirfenidone Impurity 12 (CAS 887406-49-7)
- Pirfenidone Impurity 21 (CAS 887406-53-3)
- Pirfenidone Impurity 23 (CAS 851518-71-3)
- Pirfenidone Impurity 45 (CAS CATO-C4X-222945)
- Pirfenidone Impurity 8 (CAS CATO-C4X-22298)
- Pirfenidone Impurity 34 (CAS 77837-08-2)
- Pirfenidone-d5 (5-Methyl-N-Phenyl-2-1H-Pyridone-d5) (CAS 1020719-62-3)
Recommended Standards
- Neostigmine impurity 35 (CAS CATO-C4X-204235)
- Metamizole EP Impurity B (Ampyrone) (CAS 83-07-8)
- Dexpanthenol impurity 37 (CAS CATO-C4X-161337)
- Tegoprazan Impurity 104 (CAS CATO-C4X-2297104)
- Relugoli Impurity 145 (CAS CATO-C4X-2429145)
- Paliperidone Impurity 35 (CAS 1346598-34-2)
- Gefitinib Impurity 52 (CAS CATO-C4X-111752)
- n-Butyl-3-chloroaniline (CAS 75813-68-2)
- 1-(4-Chloro-6-methylpyrimidin-2-yl)piperidine-3-carboxylic acid (CAS 1264036-29-4)
- N-(4-acetylphenyl)-2-((4-oxo-1,4-dihydroquinazolin-2-yl)thio)propanamide (CAS 1024414-31-0)
- N-((1-Methyl-1H-1,2,3-triazol-4-yl)methyl)cyclopropanamine (CAS 1341890-48-9)
- Posaconazole Impurity 274 (CAS CATO-C4X-1208274)
- 8-Methylchromane (CAS 3722-72-3)
- Fragment-[7-31]-Liraglutide (CAS CATO-C4X-199239)
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