Ezetimibe Impurity 39 CAS 1093659-89-2
| CAS No. | 1093659-89-2 |
| Molecular Formula | - |
| Molecular Weight | 413.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to deuterium isotope labeling, a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Ezetimibe Impurity 39 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 413.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Ezetimibe Impurity 39 (CAS 1093659-89-2) is a certified pharmaceutical impurity reference standard with the molecular formula C24H17D4F2NO3 and a molecular weight of 413.45 g/mol.
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 | C24H17D4F2NO3 |
| Molecular Weight | 413.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ezetimibe Standards
- Ezetimibe-d4 (CAS 1093659-90-5)
- Ezetimibe Impurity 58 (CAS 1374250-08-4)
- Ezetimibe-13C6 (CAS 438624-68-1)
- Ezetimibe Impurity 13(Open Ring Impurity) (CAS 1197811-72-5)
- Ezetimibe Impurity 43 (CAS CATO-C4X-109843)
- Ezetimibe Impurity 61 (CAS CATO-C4X-109861)
- Ezetimibe Impurity 94 (CAS CATO-C4X-109894)
- Ezetimibe Impurity 411 (CAS CATO-C4X-183738)
Recommended Standards
- N-Hydroxy-2-(4-(naphthalen-2-ylsulfonyl)-piperazin-1-yl)pyrimidine-5-carboxamide (CAS 604769-01-9)
- N-(1,2-Dimethyl-1H-benzimidazol-5-yl)-1-[(3-fluorophenyl)methyl]-1H-pyrrolo[3,2-c]pyridine-2-carboxamide (CAS 920978-76-3)
- N-((4aR,6S,7R,8R,8aS)-6-(Benzyloxy)-8-methoxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-7-yl)acetamide (CAS 116696-66-3)
- Flufylline (CAS 82190-91-8)
- Anagrelide Impurity 38 (CAS CATO-C4X-224038)
- Edaravone Impurity 58 (CAS CATO-C4X-106258)
- Potassium Clavulanate Impurity 14 (CAS 92632-79-6)
- Fluazifop-butyl D9 (CAS CATO-CCPD102037)
- (1-(Cyclopropylmethyl)-1H-imidazol-5-yl)methanamine (CAS 1468941-24-3)
- Ethyl 2-[5-ethyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]propanoate (CAS 1855889-77-8)
- 5-Hydroxy-2-iodo-4-methylbenzoic acid (CAS 1643953-27-8)
- 1-(thiophen-2-yl)ethan-1-amine hydrochloride (CAS 171268-81-8)
- p-Perfluoroterphenyl (CAS 3008-31-9)
- Mast Cell Degranulating (MCD) Peptide (CAS 32908-73-9)
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