Urapidil Impurity 64 CAS CATO-C4X-192464
| CAS No. | CATO-C4X-192464 |
| Molecular Formula | C20H29N5O5 |
| Molecular Weight | 419.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Urapidil Impurity 64 (C20H29N5O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
Urapidil Impurity 64 (CAS CATO-C4X-192464) is a certified pharmaceutical impurity reference standard with the molecular formula C20H29N5O5 and a molecular weight of 419.47 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Urapidil Impurity 64 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 | C20H29N5O5 |
| Molecular Weight | 419.47 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Urapidil Standards
- Urapidil Impurity 91 (CAS CATO-C4X-192491)
- Urapidil Impurity 20 (CAS CATO-C4X-192420)
- Urapidil Impurity 112 (CAS CATO-C4X-1924112)
- Urapidil Impurity 9 (CAS 108997-11-1)
- Urapidil Impurity 39 (CAS 2568071-92-9)
- Urapidil Impurity 10 (CAS CATO-C4X-192410)
- Urapidil Impurity 12 (CAS 88733-12-4)
- Urapidil Impurity 34 (CAS 62845-30-1)
Recommended Standards
- Estriol Impurity 15 (CAS CATO-C4X-163715)
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- Baloxavir Impurity 111 (CAS CATO-C4X-2108111)
- Cefixime polymer impurity 2 (CAS CATO-C4X-113959)
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- Atrasentan Impurity 27 (CAS 1058401-87-8)
- 2-(4-Bromo-3-nitro-1H-pyrazol-1-yl)-N,N-dimethylacetamide (CAS 1241283-38-4)
- 3-Oxo-3H-benzo[f]chromene-2-carbonyl chloride (CAS 71942-38-6)
- 7-Methyl-2-(4-methylpiperazine-1-carbonyl)-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidin-4-one (CAS 1021212-39-4)
- Thymopoietin II Peptide Fragment (CAS 56795-64-3)
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