Urapidil Impurity 71 CAS CATO-C4X-192471
| CAS No. | CATO-C4X-192471 |
| Molecular Formula | C9H13N3O2 |
| Molecular Weight | 195.22 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 Urapidil Impurity 71.
Urapidil Impurity 71 (CAS CATO-C4X-192471) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13N3O2 and a molecular weight of 195.22 g/mol.
The molecular framework of Urapidil Impurity 71 (C9H13N3O2) 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 the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 71 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 | C9H13N3O2 |
| Molecular Weight | 195.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Urapidil Standards
- Urapidil Impurity 51 (CAS 70540-90-8)
- Urapidil Impurity 92 (CAS CATO-C4X-192492)
- Urapidil Impurity 52 (CAS 5770-45-6)
- Urapidil Impurity 95 (CAS CATO-C4X-192495)
- Urapidil Impurity N2 (CAS 16015-71-7)
- Urapidil Impurity N14 (CAS 35386-24-4;5464-78-8)
- Urapidil Impurity 36 (CAS 5770-44-5)
- Urapidil Impurity 54 (CAS 13300-33-9)
Recommended Standards
- Dopamine Impurity 63 (CAS 5663-55-8)
- Prilocaine Impurity 22 (CAS 2384559-40-2)
- Dopamine Impurity 18 (CAS 5663-56-9)
- Cabozantinib Impurity 10 (CAS 98300-41-5)
- Glycyrrhizic Acid Impurity 40 (CAS CATO-C4X-253740)
- Dexamethasone Impurity 103 (CAS CATO-C4X-1165103)
- Levofloxacin Impurity 96 (CAS CATO-C4X-137196)
- 3-(2,5-Dioxopyrrolidin-1-yl)benzoic acid (CAS 60693-31-4)
- QCC-374 (CAS 1356331-63-9)
- 3,5-Dipropoxyphenol (CAS 28334-99-8)
- Methyl-2-cyano-3-phenylacrylate (CAS 3695-84-9)
- 2-(3-((Tert-butoxycarbonyl)amino)azetidin-1-yl)-2-(p-tolyl)acetic acid (CAS 885275-90-1)
- H-Hyp(tBu)-OtBu.HCl (CAS 367453-05-2)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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