Esomeprazole Impurity 17 CAS 151602-49-2
| CAS No. | 151602-49-2 |
| Molecular Formula | C16H17N3O3S |
| Molecular Weight | 331.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Esomeprazole Impurity 17 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.
Esomeprazole Impurity 17 (CAS 151602-49-2) is a certified pharmaceutical impurity reference standard with the molecular formula C16H17N3O3S and a molecular weight of 331.39 g/mol.
Esomeprazole Impurity 17 (C16H17N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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.
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.
Physical & Chemical Properties
| Molecular Formula | C16H17N3O3S |
| Molecular Weight | 331.39 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Esomeprazole Standards
- Esomeprazole Impurity 119 (CAS CATO-C4X-1112119)
- Esomeprazole Impurity 120 (CAS 358675-51-1)
- Esomeprazole impurity 126 (CAS CATO-C4X-1112126)
- Esomeprazole EP Impurity C (CAS 73590-85-9)
- Esomeprazole Impurity 136 (CAS 2561418-28-6)
- Esomeprazole impurity 133 (CAS CATO-C4X-1112133)
- Esomeprazole impurity 138 (CAS CATO-C4X-1112138)
- Esomeprazole Impurity 128 (CAS CATO-C4X-1112128)
Recommended Standards
- Esomeprazol Impurity H215 (CAS 301669-82-9/2362529-32-4)
- Cefpirome delta3 isomer 57 (CAS CATO-C4X-120757)
- Trelagliptin impurity 94 (CAS CATO-C4X-104694)
- Omeprazole Impurity 18 (CAS CATO-C4X-125518)
- Moxifloxacin Impurity 155 (CAS CATO-C4X-1074155)
- Bilastine impurity 118 (CAS 1178710-88-7（free base）)
- Plerixafor Impurity 35 8HCl (CAS CATO-C4X-113335)
- Tert-butyl (4-chloroquinolin-6-yl)carbamate (CAS 1447606-50-9)
- 4-Methyl-2-hexene (CAS 3404-55-5)
- 4-((2-(Diethylamino)ethyl)amino)-1-methyl-3-nitroquinolin-2(1H)-one (CAS 433318-33-3)
- 3-Ethyl-2-(3-(3-ethylbenzo[d]thiazol-2(3H)-ylidene)-2-methylprop-1-en-1-yl)benzo[d]thiazol-3-ium iodide (CAS 3065-79-0)
- 4,4,5,5-Tetramethyl-2-(2,4,6-trimethoxyphenyl)-1,3,2-dioxaborolane (CAS 269410-04-0)
- N-(4-(4-Methoxyphenyl)-5-methylthiazol-2-yl)isoxazole-5-carboxamide (CAS 919751-64-7)
- Des-Pro31-Tirzepatide (CAS CATO-CPTD788943)
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