Olmesartan Impurity 33 CAS CATO-C4X-109733
| CAS No. | CATO-C4X-109733 |
| Molecular Formula | C26H32N6O2 |
| Molecular Weight | 460.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 460.57 g/mol gives Olmesartan Impurity 33 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Olmesartan Impurity 33 (CAS CATO-C4X-109733, C26H32N6O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Olmesartan Impurity 33 (C26H32N6O2) contains a steroid core, 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. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C26H32N6O2 |
| Molecular Weight | 460.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Olmesartan Standards
- Olmesartan Methyl Ether (CAS 1039762-40-7)
- Olmesartan Impurity 20 (CAS 1347262-29-6)
- Olmesartan impurity 5 (CAS CATO-C4X-10975)
- Olmesartan-d6 Acid (CAS 1185144-74-4)
- Olmesartan- D4 (CAS 1420880-41-6)
- Olmesartan Impurity 85 (CAS CATO-C4X-109785)
- Olmesartan Impurity 19 (CAS 144689-23-6)
- Olmesartan Medoxomilum EP Impurity A (CAS 144689-24-7)
Recommended Standards
- PHA-848125 (CAS 802539-81-7)
- Febuxostat Impurity 17 (CAS 1330632-47-7)
- N-(5-Acetamido-2-methoxyphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 618427-62-6)
- Dipyridamole EP Impurity D (CAS 1176886-12-6)
- Zolmitriptan EP Impurity G-d3 (CAS 1217623-11-4)
- Tadalafil Impurity 82 (CAS CATO-C4X-108782)
- Clindamycin Impurity 152 (CAS CATO-C4X-1341152)
- 5-Chloro-1-(4-fluorophenyl)-1H-tetrazole (CAS 14210-27-6)
- 1-Cyclobutyl-1H-pyrazol-5-amine (CAS 497947-61-2)
- 1-Methoxy-2,4-dimethyl-3-nitrobenzene (CAS 95644-98-7)
- 4-(Aminomethyl)cyclohexan-1-ol (CAS 164646-07-5)
- Tert-Butyl 2-Ethylhexaneperoxoate (CAS 3006-82-4)
- Nicorandil Impurity 46 3Nitrate (CAS CATO-C4X-190746)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
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