Esomeprazole Impurity 92 CAS 3718-65-8
| CAS No. | 3718-65-8 |
| Molecular Formula | C7H9NO |
| Molecular Weight | 123.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Esomeprazole Impurity 92.
As a process- or degradation-related impurity, Esomeprazole Impurity 92 (CAS 3718-65-8, C7H9NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Esomeprazole Impurity 92 (C7H9NO) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; 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.
As a certified reference material (CRM), Esomeprazole Impurity 92 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 | C7H9NO |
| Molecular Weight | 123.15 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Esomeprazole Standards
- Esomeprazole Impurity 33 (CAS 615-72-5)
- Esomeprazole Impurity 111 (CAS 695-98-7)
- Esomeprazole Impurity 108 (CAS 74409-42-0)
- Esomeprazole Impurity 112 (CAS 202932-05-6)
- Esomeprazole Impurity 45 (CAS 37466-89-0)
- Esomeprazole impurity 127 (CAS 16282-23-8)
- Esomeprazole Impurity N1 (CAS 848696-99-1)
- Esomeprazole Impurity 116 (CAS 109371-19-9)
Recommended Standards
- Apixaban Impurity 111 (CAS 104-94-9)
- Lansoprazole Impurity 23 (CAS 63071-09-0)
- Rupatadine Impurity 3 (CAS 102074-19-1)
- Lansoprazole Impurity 44 (CAS 22710-07-2)
- Linaclotide Impurity 21 (CAS CATO-C4X-210621)
- Allopurinol impurity 23 (CAS CATO-C4X-145823)
- Raloxifene Impurity 29 (CAS 68574-35-6)
- 1,2-Dichloro-3-ethoxy-6-fluorobenzene (CAS 1806329-15-6)
- 2-[3-{[(2,4-dichlorobenzyl)oxy]imino}-1-(dimethylamino)propylidene]malononitrile (CAS 338773-72-1)
- 4-Ethynyl-2-(trifluoromethyl)benzonitrile (CAS 239104-49-5)
- 5-(Bromomethyl)thiophene-3-carboxylic acid (CAS 61854-97-5)
- (2S)-1-Fmoc-octahydro-1H-indole-2-carboxylic Acid (CAS 214750-71-7)
- Ibuprofen Impurity 77 (CAS CATO-C4X-108277)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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