Ilaprazole Impurity N3 CAS CATO-C1787280
| CAS No. | CATO-C1787280 |
| Molecular Formula | C19H18N4O2S |
| Molecular Weight | 366.44 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.
Ilaprazole Impurity N3 (CAS CATO-C1787280) is a certified pharmaceutical impurity reference standard with the molecular formula C19H18N4O2S and a molecular weight of 366.44 g/mol.
Based on its molecular formula C19H18N4O2S, Ilaprazole Impurity N3 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H18N4O2S |
| Molecular Weight | 366.44 g/mol |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Ilaprazole Standards
- Ilaprazole (CAS 172152-36-2)
- Ilaprazole Impurity 108 (CAS CATO-C4X-1130108)
- Ilaprazole impurity 188 (CAS CATO-C4X-1130188)
- (+)-Ilaprazole (CAS 910664-01-6)
- (-)-Ilaprazole (CAS 834897-64-2)
- Ilaprazole Impurity 79 (CAS CATO-C4X-113079)
- Ilaprazole Impurity 80 (CAS CATO-C4X-113080)
- Ilaprazole Impurity 222 (CAS CATO-C4X-1130222)
Recommended Standards
- 6-Phenyl-5-[4-(thiophene-2-carbonyl)piperazin-1-yl]-2,3-dihydropyridazin-3-one (CAS 477863-58-4)
- N-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)carbamothioyl)benzamide (CAS 84555-16-8)
- 5-(Benzylthio)-8,9-dimethoxy-2-methyl-[1,2,4]triazolo[1,5-c]quinazoline (CAS 860611-23-0)
- Propyl 2-amino-1-(thiophen-2-ylmethyl)-1H-pyrrolo[2,3-b]quinoxaline-3-carboxylate (CAS 848673-13-2)
- Terbutaline Impurity 37 (CAS 28917-43-3)
- Propofol Impurity 50 (CAS CATO-C4X-147350)
- Amlodipine 131 (CAS CATO-C4X-1095131)
- (3-Fluoro-4-methyl-phenyl)-dimethyl-amine (CAS 1369865-37-1)
- 2-((3-Fluorophenoxy)methyl)-3-hydroxyisoindolin-1-one (CAS 866010-40-4)
- 4-(tert-Butoxy)-5-cyclopropoxynicotinamide (CAS 1243283-64-8)
- N-(piperidin-4-yl)-2-(thiophen-3-yl)acetamide hydrochloride (CAS 1185307-09-8)
- (2,5-Dibromo-4-fluorophenyl)methanol (CAS 1379298-21-1)
- 4-Bromo-2-chloro-N-cyclopropylbenzamide (CAS 893420-20-7)
- Semaglutide (CAS 910463-68-2)
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