Urapidil Impurity 53 CAS CATO-C4X-192453
| CAS No. | CATO-C4X-192453 |
| Molecular Formula | C9H16N4O2 |
| Molecular Weight | 212.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Urapidil Impurity 53 (CAS CATO-C4X-192453) is a certified pharmaceutical impurity reference standard with the molecular formula C9H16N4O2 and a molecular weight of 212.25 g/mol.
Based on its molecular formula C9H16N4O2, Urapidil Impurity 53 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 212.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H16N4O2 |
| Molecular Weight | 212.25 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Urapidil Standards
- Urapidil Impurity 1 (CAS 34654-80-3)
- Urapidil Impurity 19 (CAS 2287518-97-0)
- Urapidil Impurity 55 (CAS CATO-C4X-192455)
- Urapidil Impurity 46 (CAS CATO-C4X-192446)
- Urapidil Impurity 43 (CAS CATO-C4X-192443)
- Urapidil Impurity 104 (CAS CATO-C4X-1924104)
- Urapidil Impurity 82 (CAS CATO-C4X-192482)
- Urapidil Impurity 29 (CAS 34654-88-1)
Recommended Standards
- Norepinephrine Impurity 65 (CAS CATO-C4X-151465)
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- Olaparib Impurity 66 (CAS 40019-44-1)
- Mavacamten Impurity 10 (CAS 1642289-54-0)
- Tryptophan Impurity 46 (CAS 56632-86-1)
- Ranolazine Impurity 2 (CAS 162712-35-8)
- Cefixime Impurity 110 (CAS CATO-C4X-1139110)
- 1-(4-Bromo-3-fluorophenyl)-2,2-dimethylbutan-1-one (CAS 898765-68-9)
- ethyl 2-bromopyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1394003-51-0)
- 2,3-Di(1H-indol-3-yl)-4-methyl-3H-benzo[b][1,4]diazepine (CAS 96090-25-4)
- N-ethyl-6-oxo-1,6-dihydropyridazine-3-carboxamide (CAS 1341154-17-3)
- 5-Cyano-2-iodo-6-azaindole (CAS 1260386-46-6)
- Levosimendan Impurity 25 (CAS 274263-65-9)
- (Tyr9)-Cholecystokinin Octapeptide (sulfated) (H-9770.0005) (CAS 96607-61-3)
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