Irbesartan Impurity 44 CAS CATO-C4X-166644
| CAS No. | CATO-C4X-166644 |
| Molecular Formula | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Irbesartan Impurity 44 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.
CATO supplies Irbesartan Impurity 44 (CAS CATO-C4X-166644), a pharmacopoeial impurity reference standard (molecular formula C11H20N2O2, MW 212.29 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Irbesartan Impurity 44 (C11H20N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C11H20N2O2 |
| Molecular Weight | 212.29 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
Related Irbesartan Standards
- Irbesartan Impurity 2 (CAS 177219-40-8)
- Irbesartan Impurity 42 (CAS CATO-C4X-166642)
- Irbesartan Impurity 46 (CAS CATO-C4X-166646)
- Irbesartan Impurity 48 (CAS 253269-07-7)
- Irbesartan Impurity 23 (CAS CATO-C4X-166623)
- Irbesartan Impurity 3 (CAS 15026-80-9)
- Irbesartan impurity 37 (CAS 1415462-83-7)
- Irbesartan Impurity 17 (CAS CATO-C4X-166617)
Recommended Standards
- Ketoprofen Impurity 58 (CAS CATO-C4X-147158)
- Brivaracetam (CAS 357336-20-0)
- Fluoxetine Impurity 22 (CAS 14097-24-6)
- Brivaracetam impurity 104 (CAS 357334-83-9)
- Iopamidol Impurity 53 (CAS CATO-C4X-145053)
- Nemonoxacin Impurity 57 (CAS CATO-C4X-312857)
- Pemafibrate Impurity 6 (CAS 907192-61-4)
- 5-((tert-Butoxycarbonyl)amino)-1H-pyrrole-2-carboxylic acid (CAS 547762-39-0)
- Chlorfenac Ethyl Ester (CAS 1359827-62-5)
- Methyl 3-bromo-5-(bromomethyl)benzoate (CAS 877624-40-3)
- Pyrazosulfuron-Ethyl (CAS 93697-74-6)
- N-(5-Chloro-2-(hydroxymethyl)phenyl)acetamide (CAS 150869-44-6)
- Phenylephrine Impurity 57 (CAS 1477-63-0)
- Insulin Degludec Impurity 28 (CAS CATO-C4X-215728)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com