Olmesartan Impurity 47 CAS 1048948-15-7
| CAS No. | 1048948-15-7 |
| Molecular Formula | C43H38N6O2 |
| Molecular Weight | 670.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Olmesartan Impurity 47 (CAS 1048948-15-7), a pharmacopoeial impurity reference standard (molecular formula C43H38N6O2, MW 670.80 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Olmesartan Impurity 47 (C43H38N6O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 28.0, corresponding to approximately 28 ring(s) or double-bond equivalent(s). With a molecular weight of 670.80 g/mol, it falls into the high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C43H38N6O2 |
| Molecular Weight | 670.80 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) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 6 |
Related Olmesartan Standards
- Olmesartan N2-Trityl Anhydro Acid (CAS 1797891-24-7)
- Olmesartan impurity 100 (CAS 761404-82-4)
- Olmesartan Medoxomil Impurity 26 (CAS 1392475-91-0)
- Olmesartan impurity 102 (CAS CATO-C4X-1098102)
- Olmesartan Impurity 43 (CAS 1227664-85-8)
- Olmesartan Impurity 44 (CAS CATO-C4X-109744)
- Olmesartan Impurity 109 (CAS 1867269-66-6)
- Olmesartan Impurity 42 (CAS 1227626-50-7)
Recommended Standards
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- Brexpiprazole Impurity 161 (CAS CATO-C4X-1131161)
- Pravastatin EP Impurity C Sodium Salt (CAS 159225-12-4)
- Ceftazidime EP Impurity E (CAS 102772-66-7)
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- Cholecystokinin Octapeptide (1-4) (desulfated) (CAS 80790-40-5)
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