Urapidil Impurity 34 CAS 62845-30-1
| CAS No. | 62845-30-1 |
| Molecular Formula | C20H29N5O4 |
| Molecular Weight | 403.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Urapidil Impurity 34 (CAS 62845-30-1), a pharmacopoeial impurity reference standard (molecular formula C20H29N5O4, MW 403.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Urapidil Impurity 34 (C20H29N5O4) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Urapidil Impurity 34 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H29N5O4 |
| Molecular Weight | 403.48 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 |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 5 |
Related Urapidil Standards
- Urapidil Impurity 10 (CAS CATO-C4X-192410)
- Urapidil Impurity 12 (CAS 88733-12-4)
- Urapidil Impurity 35 (CAS CATO-C4X-192435)
- Urapidil Impurity 68 (CAS 1703052-28-1)
- Urapidil Impurity 89 (CAS CATO-C4X-192489)
- Urapidil Impurity 17 (CAS 34661-85-3)
- Urapidil Impurity 49 (CAS CATO-C4X-192449)
- Urapidil Impurity 57 (CAS CATO-C4X-192457)
Recommended Standards
- N-(5-Guanidino-1-(naphthalen-2-ylamino)-1-oxopentan-2-yl)benzamide (CAS 305-09-9)
- Darolutamide Impurity 34 (CAS CATO-C4X-310634)
- N-(4-Ethoxy-3-methoxybenzyl)-5-methyl-2-(3-methylphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 951494-27-2)
- Fenchlorazol-Ethyl (CAS 103112-35-2)
- Aripiprazole Impurity 82 (CAS CATO-C4X-100882)
- Promestriene Impurity 7 (CAS 1852-86-4)
- Apixaban Impurity 146 (CAS CATO-C4X-1088146)
- 4-Methyl-3-nitro-1H-pyrrolo[2,3-c]pyridine (CAS 1190319-06-2)
- Dimethyl sulfoxide-<SUP>13</SUP>C<SUB>2</SUB> (CAS 136321-15-8)
- 2-Bromo-4-cyanobenzyl chloride (CAS 1261817-60-0)
- 2-Azaspiro[5.5]undecane (CAS 180-48-3)
- 4-(5-(5-(Ethoxycarbonyl)-3-methyl-1H-pyrazol-1-yl)pentyl)-1-ethyl-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 2138301-66-1)
- 2-Azabicyclo[3.1.1]heptane-1-carboxylic acid (CAS 1169708-23-9)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
Why CATO?
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