Ezetimibe Impurity 79 CAS 2191318-99-5
| CAS No. | 2191318-99-5 |
| Molecular Formula | C24H21F2NO3 |
| Molecular Weight | 409.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Ezetimibe Impurity 79 (CAS 2191318-99-5) is a certified pharmaceutical impurity reference standard with the molecular formula C24H21F2NO3 and a molecular weight of 409.43 g/mol.
Ezetimibe Impurity 79 (C24H21F2NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
CATO manufactures Ezetimibe Impurity 79 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 | C24H21F2NO3 |
| Molecular Weight | 409.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ezetimibe Standards
- Ezetimibe Impurity ((S)-4-Phenyloxazolidin-2-one) Sodium salt (CAS 200067-49-8)
- Ezetimibe (CAS 163222-33-1)
- Ezetimibe meta-Fluorobenzene Isomer (CAS CATO-C4X-1098127)
- Ezetimibe Lactone Impurity 128 (CAS CATO-C4X-1098128)
- Ezetimibe Impurity 17(SCH59566) (CAS 1296129-15-1)
- Ezetimibe Ring-Opening Dehydrate Impurity (CAS 1292292-63-7)
- Ezetimibe o-Fluorobenzene Isomer (CAS 2743547-96-6)
- Ezetimibe Impurity 3 (CAS CATO-C4X-10983)
Recommended Standards
- Ezetimibe Impurity 60 (CAS 1050631-82-7)
- Ezetimibe Impurity 90 (CAS CATO-C4X-109890)
- Ezetimibe m-Flouroaniline analog (CAS 1700622-06-5)
- Daprodustat impurity 8 (CAS CATO-C4X-24078)
- Pioglitazone impurity 54 (CAS 54119-29-8)
- Ziprasidone EP Impurity A (CAS 87691-87-0)
- Carboprost Trometamol EP Impurity B (CAS 35864-81-4)
- 1-Methoxy-3-p-tolylamino-propan-2-ol (CAS 188882-20-4)
- Docosahydrodibenzo[b,k][1,4,7,10,13,16,19]heptaoxacyclohenicosine (CAS 17455-21-9)
- Terbutaline Impurity 61 (CAS CATO-C4X-118361)
- Methyl 3-amino-5-(propan-2-yl)thiophene-2-carboxylate (CAS 216574-44-6)
- 4,8-Dichloro-7-fluoroquinoline (CAS 1065093-08-4)
- N-(1-Benzoyl-1,2,3,4-tetrahydroquinolin-6-yl)-2-(cyclopentylthio)acetamide (CAS 1323793-43-6)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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