Pirfenidone Impurity 34 CAS 77837-08-2
| CAS No. | 77837-08-2 |
| Molecular Formula | C12H9NO3 |
| Molecular Weight | 215.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Pirfenidone Impurity 34 (C12H9NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Pirfenidone Impurity 34 (CAS 77837-08-2) is a certified pharmaceutical impurity reference standard with the molecular formula C12H9NO3 and a molecular weight of 215.20 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), Pirfenidone Impurity 34 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 | C12H9NO3 |
| Molecular Weight | 215.20 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 1 |
Related Pirfenidone Standards
- Pirfenidone Impurity 22 (CAS CATO-C4X-222922)
- Pirfenidone Impurity 36 (CAS 53427-80-8)
- Pirfenidone Impurity 37 (CAS CATO-C4X-222937)
- Pirfenidone Impurity 48 (CAS CATO-C4X-222948)
- 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)
Recommended Standards
- Nicorandil-d4 (CAS 1132681-23-2)
- Afoxolaner Impurity 27 (CAS 2382920-55-8)
- Pranoprofen Impurity 52 (CAS 35620-71-4)
- Zonisamide-13C2-15N (CAS 1188265-58-8)
- Nimodipine Impurity 47 (CAS CATO-C4X-138547)
- Venetoclax Impurity 1 (CAS 1228779-96-1)
- Prilocaine Impurity 13 (CAS 19343-15-8)
- N-Butyl-2-pyrrolidinecarboxamide hydrochloride (CAS 1236266-64-0)
- (E)-N-(2-(3-(benzylthio)-6-methyl-1,2,4-triazin-5-yl)vinyl)-O-(4-chlorobenzyl)hydroxylamine (CAS 477866-54-9)
- (S)-2-(2-(((Benzyloxy)carbonyl)amino)acetamido)-4-(methylthio)butanoic acid (CAS 3561-48-6)
- 3-(2,5-Dichlorophenyl)piperidine (CAS 1044765-39-0)
- 3-4-6-Tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl trichloroacetimidate (CAS 87190-67-8)
- 2-(4-Chlorophenyl)-2-[(3-chlorophenyl)amino]acetic acid (CAS 725253-04-3)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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