Besudil Impurity 13 CAS CATO-C4X-298813
| CAS No. | CATO-C4X-298813 |
| Molecular Formula | C23H20N4O5 |
| Molecular Weight | 432.43 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 Besudil Impurity 13.
Besudil Impurity 13 (CAS CATO-C4X-298813) is a certified pharmaceutical impurity reference standard with the molecular formula C23H20N4O5 and a molecular weight of 432.43 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Besudil Impurity 13 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 432.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Besudil Impurity 13 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H20N4O5 |
| Molecular Weight | 432.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Besudil Standards
- Besudil Impurity 2 (CAS 911417-62-4)
- Besudil Impurity 3 (CAS CATO-C4X-29883)
- Besudil Impurity 6 (CAS CATO-C4X-29886)
- Besudil Impurity 7 (CAS CATO-C4X-29887)
- Besudil Impurity 1 (CAS CATO-C4X-29881)
- Besudil Impurity 4 (CAS CATO-C4X-29884)
- Besudil Impurity 5 (CAS CATO-C4X-29885)
- Besudil Impurity 14 (CAS CATO-C4X-298814)
Recommended Standards
- Lisinopril Impurity 15 (CAS 116169-90-5)
- Acetaminotadalafil (CAS 1446144-71-3)
- Fmoc-3-nitro-L-phenylalanine (CAS 206060-42-6)
- Fmoc-p-nitro-Phe-OH (CAS 95753-55-2)
- Nitroso Perindopril EP impurity Y (CAS CATO-C4X-125262)
- Cefradine EP Impurity B (CAS 26774-88-9)
- Ramelteon Impurity N13 (CAS 882434-87-9)
- 1-Allyl-6-amino-5,6,7,8-tetrahydroquinolin-2(1H)-one (CAS 1422067-44-4)
- 4-[(R)-3-[4-Cyano-3-(trifluoromethyl)phenyl]-4-oxo-2-thioxo-7-oxa-1,3-diazaspiro[4.4]non-1-yl]-2-fluoro-N-methylbenzamide (CAS 1351185-54-0)
- (Furan-2-yl(hydroxy)methyl)diphenylphosphine oxide (CAS 371958-83-7)
- 1-Methyl-1,2,3,4-tetrahydroquinoline-6-carbonitrile (CAS 74896-23-4)
- 1-((6-Chlorohexyl)oxy)-4-methylbenzene (CAS 79096-32-5)
- N-(2-(cyclohept-1-en-1-yl)ethyl)thietan-3-amine (CAS 1864134-20-2)
- T-Peptide (CAS 2022956-62-1)
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