Belumosudil Impurity 59 CAS CATO-C4X-298859
| CAS No. | CATO-C4X-298859 |
| Molecular Formula | C19H17N3O4 |
| Molecular Weight | 351.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Belumosudil Impurity 59 (C19H17N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Belumosudil Impurity 59 (CAS CATO-C4X-298859), a pharmacopoeial impurity reference standard (molecular formula C19H17N3O4, MW 351.36 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C19H17N3O4 |
| Molecular Weight | 351.36 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Belumosudil Standards
- Belumosudil Impurity 62 (CAS CATO-C4X-298862)
- Belumosudil Impurity 61 (CAS CATO-C4X-298861)
- Belumosudil Impurity 33 (CAS 2121561-37-1)
- Belumosudil Impurity 43 (CAS 2121561-41-7)
- Belumosudil Impurity 35 (CAS CATO-C4X-298835)
- Belumosudil Impurity 44 (CAS CATO-C4X-298844)
- Belumosudil Impurity 38 (CAS CATO-C4X-298838)
- Belumosudil Impurity 39 (CAS 2121561-39-3)
Recommended Standards
- Finerenone Impurity 58 (CAS CATO-C4X-288058)
- trans-Zeatin Riboside (CAS 6025-53-2)
- Finerenone Impurity 54 (CAS CATO-C4X-288054)
- H-Gly-Arg-pNA (CAS 103192-40-1)
- Linezolid Impurity 62 (CAS 16483-45-7)
- Oxolinic Acid EP Impurity B (CAS 16172-03-5)
- Baloxavir Marboxil Impurity 190 (CAS CATO-C4X-2108190)
- 1-(3,5-Dichlorophenyl)cyclopropanecarboxylic Acid (CAS 1298134-94-7)
- 1220419-54-4 Methyl 5-bromo-2-(dimethylamino)nicotinate MFCD27501032 (CAS 1220419-54-4)
- Avelestat (CAS 848141-11-7)
- 2-[4-(4-Chlorophenyl)piperazin-1-yl]acetic acid (CAS 946757-68-2)
- Labetalol EP Impurity A (CAS 1391051-99-2)
- 2-(4-Amino-2-ethoxyphenyl)pthalimide (CAS 106981-52-6)
- Semaglutide (CAS CATO-C4X-2226105)
Why CATO?
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- 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