Olmesartan Impurity 41 CAS 1443544-27-1
| CAS No. | 1443544-27-1 |
| Molecular Formula | C5H4Cl2O3 |
| Molecular Weight | 182.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Olmesartan Impurity 41 (CAS 1443544-27-1) is a certified pharmaceutical impurity reference standard with the molecular formula C5H4Cl2O3 and a molecular weight of 182.99 g/mol.
The molecular framework of Olmesartan Impurity 41 (C5H4Cl2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Olmesartan Impurity 41 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4Cl2O3 |
| Molecular Weight | 182.99 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
Related Olmesartan Standards
- Olmesartan Impurity 94 (CAS CATO-C4X-109794)
- Olmesartan Impurity 34 (CAS 116857-04-6)
- Olmesartan Impurity 69 (CAS 129482-56-0)
- Olmesartan Impurity 63 (CAS 144690-06-2)
- Olmesartan Impurity 28 (CAS 114772-53-1)
- Olmesartan Impurity 106 (CAS CATO-C4X-1097106)
- Olmesartan Impurity 31 (CAS 849206-42-4)
- Olmesartan Impurity 3 (CAS 1025972-83-1)
Recommended Standards
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- 5-Methyl-2-piperidin-4-yl-1,3-benzoxazole (CAS 199292-77-8)
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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