Istradefylline Impurity 25 CAS CATO-C4X-106125
| CAS No. | CATO-C4X-106125 |
| Molecular Formula | C17H18N4O4 |
| Molecular Weight | 342.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Istradefylline Impurity 25 (CAS CATO-C4X-106125), a pharmacopoeial impurity reference standard (molecular formula C17H18N4O4, MW 342.35 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Istradefylline Impurity 25 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 342.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H18N4O4 |
| Molecular Weight | 342.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Istradefylline Standards
- Istradefylline Impurity 19 (CAS 155272-03-0)
- Istradefylline Impurity 28 (CAS CATO-C4X-106128)
- Istradefylline Impurity 2 (CAS 160434-48-0)
- Istradefylline Impurity 24 (CAS 155270-98-7)
- Istradefylline Impurity 3 (CAS 155272-04-1)
- Istradefylline Impurity 9 (CAS CATO-C4X-10619)
- Istradefylline (CAS 155270-99-8)
- Istradefylline Impurity 1 (CAS 606080-73-3)
Recommended Standards
- 341966-15-2 KS-00001QWH methyl 3-(benzoylamino)-6-[(E)-2-(dimethylamino)ethenyl]-2-oxo-2H-pyran-5-carboxylate (CAS 341966-15-2)
- Naphazoline impurity 13 (CAS CATO-C4X-144013)
- CAS 2228029-82-9 (CAS 2228029-82-9)
- Indobufen Impurity 93 (CAS CATO-C4X-179293)
- Bambuterol EP Impurity F (CAS 112935-94-1)
- Salbutamol Impurity 103 (CAS CATO-C4X-1176103)
- Mirogabalin Impurity 200 (CAS CATO-C4X-2924200)
- 5-Acetyl-4-(4-fluorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3-carboxylic acid (CAS 439120-58-8)
- 1-(Pyridin-3-yl)butan-2-one (CAS 6302-10-9)
- 5-{[5-chloro-2-(methoxycarbonyl)phenyl]sulfamoyl}-2-fluorobenzoic acid (CAS 949760-08-1)
- 4-(1-Bromoethyl)-N,N-dimethylaniline (CAS 1183493-64-2)
- Necrosulfonamide-d4 (CAS 1795144-22-7)
- sec-Butyl 1H-pyrrole-2-carboxylate (CAS 685563-22-8)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510841-23-2)
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