Pirfenidone Impurity 11 CAS CATO-C4X-222911
| CAS No. | CATO-C4X-222911 |
| Molecular Formula | C18H16N2O2 |
| Molecular Weight | 292.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pirfenidone Impurity 11.
Pirfenidone Impurity 11 (CAS CATO-C4X-222911) is a certified pharmaceutical impurity reference standard with the molecular formula C18H16N2O2 and a molecular weight of 292.33 g/mol.
Based on its molecular formula C18H16N2O2, Pirfenidone Impurity 11 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 292.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 11 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 | C18H16N2O2 |
| Molecular Weight | 292.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Pirfenidone Standards
- Pirfenidone Impurity 13 (CAS 2251047-36-4)
- Pirfenidone Impurity 9 (CAS CATO-C4X-22299)
- Pirfenidone Impurity 20 (CAS 377756-15-5)
- Pirfenidone Impurity 24 (CAS 912570-13-9)
- Pirfenidone Impurity 36 (CAS 53427-80-8)
- Pirfenidone Impurity 37 (CAS CATO-C4X-222937)
- Pirfenidone Impurity 22 (CAS CATO-C4X-222922)
- Pirfenidone Impurity 34 (CAS 77837-08-2)
Recommended Standards
- Hydantoin Impurity 28 (CAS CATO-C4X-214628)
- Nintedanib Impurity 6 (CAS 1139453-98-7)
- Nintedanib Impurity 159 (CAS CATO-C4X-1814159)
- Trientine Impurity 7 (CAS CATO-C4X-30687)
- Atogepant Impurity 64 (CAS CATO-C4X-328564)
- Diclofenac Impurity 41 (CAS 131023-45-5)
- Pranlukast Impurity 2 (CAS 211116-98-2)
- Palmitic Acid-?13C16 (CAS 56599-85-0)
- 2-Methyl-2-(1h-pyrazol-1-yl)propan-1-ol (CAS 1177358-72-3)
- 5-hydroxymethylcytidine Phosphoramidite (CAS CATO-C4X-288621)
- (4-(Pyrazin-2-yl)phenyl)methanamine (CAS 885468-58-6)
- 2-(3-Methylpiperidin-1-yl)acetic acid hydrochloride (CAS 1185294-82-9)
- Methyl 6-chloro-5-cyano-3,4-dimethylpicolinate (CAS 2581232-23-5)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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