Urapidil Impurity 38 CAS CATO-C4X-192438
| CAS No. | CATO-C4X-192438 |
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Urapidil Impurity 38 (CAS CATO-C4X-192438), a pharmacopoeial impurity reference standard (molecular formula C5H7N3O2, MW 141.13 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Urapidil Impurity 38 (C5H7N3O2) 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 38 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 | C5H7N3O2 |
| Molecular Weight | 141.13 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 3 |
Related Urapidil Standards
- Urapidil Impurity 73 (CAS 21236-97-5)
- Urapidil Impurity N16 (CAS 874-14-6)
- Urapidil Impurity 75 (CAS 116315-12-9)
- Urapidil Impurity 31 (CAS 40226-15-1)
- Urapidil Impurity 25 (CAS 63959-47-7)
- Urapidil Impurity 33 (CAS 39615-79-7)
- Urapidil Impurity N62 (CAS 41949-07-9)
- Urapidil Impurity 108 (CAS CATO-C4X-1924108)
Recommended Standards
- Minoxidil Impurity 10 (CAS 79459-04-4)
- Allopurinol Impurity 9 (CAS 41621-10-7)
- Relugolix Impurity 66 (CAS CATO-C4X-242966)
- Folic acid EP Impurity B (CAS 1004-75-7)
- Baloxavir impurity C868 (CAS 1985607-65-5)
- Lusutrombopag Impurity 71 (CAS CATO-C4X-208471)
- Faropenem Impurity 68 (CAS 1690457-73-8)
- Lornoxicam impurity 49 (CAS CATO-C4X-201649)
- 2-Methyl-2-(3-methylphenyl)propanoic acid (CAS 93351-25-8)
- Ethyl 3-(5-(3,4-dichlorophenyl)furan-2-yl)acrylate (CAS 886496-81-7)
- 4-tert-Butyl-2-methoxybenzaldehyde (CAS 53535-88-9)
- 3-Trifluoromethylsulfanyl-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1206524-36-8)
- 2-((4,6-Dimethylpyrimidin-2-yl)thio)propanoic acid (CAS 433242-31-0)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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