Bezafibrate EP Impurity E CAS CATO-C4X-201713
| CAS No. | CATO-C4X-201713 |
| Molecular Formula | C23H28ClNO4 |
| Molecular Weight | 417.93 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.
Bezafibrate EP Impurity E (CAS CATO-C4X-201713) is a certified pharmaceutical impurity reference standard with the molecular formula C23H28ClNO4 and a molecular weight of 417.93 g/mol.
Structurally, Bezafibrate EP Impurity E (C23H28ClNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 417.93 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C23H28ClNO4 |
| Molecular Weight | 417.93 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Bezafibrate Standards
- Bezafibrate Impurity 10 (CAS 41859-56-7)
- Bezafibrate Isopropyl Ester (CAS 153758-85-1)
- Bezafibrate EP Impurity D (CAS 41859-58-9)
- Bezafibrate EP Impurity C (CAS 2157488-46-3)
- Bezafibrate D6 (dimethyl D6) (CAS 1219802-74-0)
- Bezafibrate-d4 (CAS 1189452-53-6)
- Bezafibrate (CAS 41859-67-0)
- Bezafibrate Impurity 7 (CAS CATO-C4X-20177)
Recommended Standards
- N-(4-Chlorophenyl)-N-(4-methyl-4,5-dihydrothiazol-2-yl)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide (CAS 870760-37-5)
- 4-(2,3-Dibromopropyl)-2,3,5,6-tetrafluorobenzotrifluoride (CAS 1244856-10-7)
- N-({1'-benzyl-4',5'-dimethyl-1'H-[1,2'-bipyrrole]-3'-yl}methyl)-2-chlorobenzamide (CAS 478077-13-3)
- (E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole (CAS 551920-93-5)
- Dexpanthenol Impurity 17 (CAS CATO-C4X-161317)
- CAS 478784-66-6 (CAS 478784-66-6)
- Rivaroxaban impurity 188 (CAS 1879933-39-7)
- tert-Butyl (3S)-3-(2-oxo-1,2,3,4-tetrahydroquinazolin-3-yl)pyrrolidine-1-carboxylate (CAS 1389309-98-1)
- 6'-Bromospiro[cyclohexane-1,3'-pyrrolo[3,2-b]pyridine]-2',4(1'H)-dione (CAS 1190862-23-7)
- Perfluoroamyl Iodide (CAS 638-79-9)
- 3-Chloro-5-(trifluoromethyl)-2-((3-(trifluoromethyl)-1H-1,2,4-triazol-5-yl)thio)pyridine (CAS 1823182-70-2)
- 4-(2-Chlorophenyl)butan-2-amine (CAS 144887-95-6)
- Prucalopride Impurity 36 (CAS 232941-14-9)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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