Ilaprazole impurity 189 CAS CATO-C4X-1130189
| CAS No. | CATO-C4X-1130189 |
| Molecular Formula | C19H18N4O4S |
| Molecular Weight | 398.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ilaprazole impurity 189 (CAS CATO-C4X-1130189), a pharmacopoeial impurity reference standard (molecular formula C19H18N4O4S, MW 398.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H18N4O4S, Ilaprazole impurity 189 contains a flavonoid 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 398.44 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).
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.
As a certified reference material (CRM), Ilaprazole impurity 189 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 | C19H18N4O4S |
| Molecular Weight | 398.44 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 Impurity 4 (CAS CATO-C4X-11304)
- Ilaprazole Impurity 83 (CAS CATO-C4X-113083)
- Ilaprazole Impurity 48 (CAS CATO-C4X-113048)
- Ilaprazole Impurity 25 (CAS CATO-C4X-113025)
- Ilaprazole Impurity 68 (CAS CATO-C4X-113068)
- Ilaprazole Impurity 15 (CAS CATO-C4X-113015)
- Ilaprazole impurity 197 (CAS CATO-C4X-1130197)
- Ilaprazole Impurity 6 (CAS 1360824-57-2)
Recommended Standards
- Ticagrelor Impurity 93 (CAS CATO-C4X-109393)
- S-Adenosyl-L-Methionine (CAS 29908-03-0)
- 2-((1-Cyanocyclopentyl)amino)-2-oxoethyl 1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)cyclopentane-1-carboxylate (CAS 1009466-43-6)
- N-{4-[(2,6-Dimethylpyrimidin-4-yl)sulfamoyl]phenyl}-3-(furan-2-yl)prop-2-enamide (CAS 518350-19-1)
- Minoxidil Impurity 13 (CAS 64344-76-9)
- Chlorphenamine impurity 52 (CAS CATO-C4X-118852)
- Pregnenolone Impurity 11 (CAS 6795-58-0)
- N-(3-amino-4-fluorophenyl)-2-methoxyacetamide (CAS 926197-62-8)
- 3,4-Dihydroxy-2-methoxy-9H-xanthen-9-one (CAS 6702-55-2)
- 5-Bromo-4-chloro-2-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine (CAS 183274-54-6)
- 2-Methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridin-5-ol (CAS 157196-09-3)
- Methyl 4-(furan-2-yl)-1-methylpyrrolidine-3-carboxylate (CAS 1706433-33-1)
- 4-Bromo-3-(difluoromethyl)-6-fluoropyridine-2-carboxaldehyde (CAS 1806905-20-3)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
Why CATO?
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