Esomeprazole Impurity 87 CAS CATO-C4X-111287
| CAS No. | CATO-C4X-111287 |
| Molecular Formula | C8H9N3O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Esomeprazole Impurity 87 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 87 (CAS CATO-C4X-111287) is a certified pharmaceutical impurity reference standard with the molecular formula C8H9N3O5 and a molecular weight of 227.18 g/mol.
Esomeprazole Impurity 87 (C8H9N3O5) contains an amino-acid-derived structure, 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.
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 | C8H9N3O5 |
| Molecular Weight | 227.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Esomeprazole Standards
- Esomeprazole Impurity 70 (CAS 103876-98-8)
- Esomeprazole Impurity 71 (CAS 1076199-93-3)
- Esomeprazole Impurity 79 (CAS 1080689-87-7)
- Esomeprazole Impurity 116 (CAS 109371-19-9)
- Esomeprazole Impurity 106 (CAS 110464-72-7)
- Esomeprazole Impurity 31 (CAS 1114596-75-6)
- EsoMeprazole (CAS 119141-88-7)
- Esomeprazole EP Impurity F (CAS 119141-89-8)
Recommended Standards
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- 3-(3,3,3-Trifluoropropoxy)pyrrolidine (CAS 1343358-30-4)
- (2-(Trifluoromethyl)pyridin-4-yl)methanamine dihydrochloride (CAS 916211-41-1)
- 478043-53-7 2-Chloro-1-methyl-N-phenyl-1H-indole-3-carboxamide MFCD01316447 (CAS 478043-53-7)
- 7-(4-chlorophenyl)-4,7-dioxoheptanoic acid (CAS 1566-07-0)
- 4-(6-Methyl-2-pyridyl)aniline (CAS 1187168-53-1)
- 2,2,2-Trifluoro-1-(4-isopropylphenyl)ethan-1-amine (CAS 886369-16-0)
- Des-Ala18-Tirzepatide (CAS CATO-CPTD788955)
Why CATO?
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