Olmesartan Impurity 42 CAS 1227626-50-7
| CAS No. | 1227626-50-7 |
| Molecular Formula | C44H42N6O2 |
| Molecular Weight | 686.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Olmesartan Impurity 42 (CAS 1227626-50-7), a pharmacopoeial impurity reference standard (molecular formula C44H42N6O2, MW 686.84 g/mol) used for the identification and quantification of trace impurities in APIs.
Olmesartan Impurity 42 (C44H42N6O2) contains a nitrogen-containing heterocyclic scaffold, 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.
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), Olmesartan Impurity 42 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 | C44H42N6O2 |
| Molecular Weight | 686.84 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 6 |
Related Olmesartan Standards
- Olmesartan Impurity 83 (CAS CATO-C4X-109783)
- Olmesartan Impurity 109 (CAS 1867269-66-6)
- Olmesartan impurity 11 (CAS 761404-85-7)
- Olmesartan Impurity 80 (CAS 752179-89-8)
- Olmesartan impurity 102 (CAS CATO-C4X-1097102)
- Olmesartan Impurity 66 (CAS 157356-74-6)
- Olmesartan Impurity 44 (CAS CATO-C4X-109744)
- Olmesartan Impurity 65 (CAS 2101308-74-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com