Ezetimibe Impurity 38 CAS 404874-93-7
| CAS No. | 404874-93-7 |
| Molecular Formula | C20H18FNO4 |
| Molecular Weight | 355.36 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 355.36 g/mol gives Ezetimibe Impurity 38 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ezetimibe Impurity 38 (CAS 404874-93-7), a pharmacopoeial impurity reference standard (molecular formula C20H18FNO4, MW 355.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C20H18FNO4, Ezetimibe Impurity 38 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 355.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Ezetimibe Impurity 38 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 | C20H18FNO4 |
| Molecular Weight | 355.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ezetimibe Standards
- Ezetimibe Impurity 36 (CAS 189028-93-1)
- Ezetimibe Impurity 87 (CAS 2514695-40-8)
- Ezetimibe Impurity 92 (CAS 2469633-86-9)
- Ezetimibe Impurity 125 (CAS 439080-96-3)
- Ezetimibe Impurity 139 (CAS CATO-C4X-1098139)
- Ezetimibe Impurity 24 (CAS 528565-93-7)
- Ezetimibe Impurity 25 (CAS 404874-94-8)
- Ezetimibe Impurity 26 (CAS 1612153-32-8)
Recommended Standards
- Linezolid Impurity 11 (CAS 1394245-06-7)
- Biapenem-13C2,15N3 (CAS 120410-24-4 (unlabeled))
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- Fmoc-cis-4-fluoro-Pro-OH (CAS 203866-19-7)
- Silodosin Impurity 11 (CAS 239463-74-2)
- Tenofovir Disoproxil Impurity 35 (CAS 14047-27-9)
- Lidocaine EP Impurity D(HCl) (CAS 7729-94-4)
- 5-Fluoro-3H-spiro[isobenzofuran-1,4'-piperidin]-3-one (CAS 707541-47-7)
- 3-Methyl-5-nitrobenzene-1,2-diamine (CAS 70499-98-8)
- 2-(Ethylamino)-2-(4-methoxyphenyl)-acetonitrile hydrochloride (CAS 1440535-59-0)
- Monobutyltin (CAS 2406-65-7)
- 1-(6-Methyl-5,6,7,8-tetrahydrocinnolin-3-yl)piperidine-3-carboxylic acid (CAS 1707668-00-5)
- 6-Bromo-2,3,4-trifluorobenzaldehyde (CAS 372519-10-3)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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