Econazole Impurity 11 CAS 4252-78-2
| CAS No. | 4252-78-2 |
| Molecular Formula | C8H5Cl3O |
| Molecular Weight | 223.48 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 223.48 g/mol gives Econazole Impurity 11 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Econazole Impurity 11 (CAS 4252-78-2) is a certified pharmaceutical impurity reference standard with the molecular formula C8H5Cl3O and a molecular weight of 223.48 g/mol.
Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Econazole Impurity 11 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 223.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Econazole Impurity 11 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 | C8H5Cl3O |
| Molecular Weight | 223.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Econazole Standards
- Econazole Impurity 5 (CAS 81547-71-9)
- Econazole Impurity 6 (CAS 116865-83-9)
- Econazole impurity 17 (CAS 24155-44-0)
- Econazole impurity 18 (CAS 24155-45-1)
- Econazole impurity 20 (CAS CATO-C4X-132720)
- Econazole impurity 21 (CAS 293759-26-9)
- Econazole impurity 27 (CAS 27087-94-1)
- Econazole impurity 29 (CAS 24155-32-6)
Recommended Standards
- Empagliflozin Impurity 93 (CAS 19932-79-7)
- 2,2-Dichloro-1-(4-chlorophenyl)ethanone 4711AE 5157-57-3 C8H5Cl3O (CAS 5157-57-3)
- 4-Bromo-2-chlorothiazole-5-carbonitrile (CAS 2091047-23-1)
- Revefenacin impurity 105 (CAS CATO-C4X-2031105)
- Tolvaptan Impurity 107 (CAS 2735310-65-1)
- Roxithromycin Impurity 17 (CAS 74498-88-7)
- Dabrafenib Impurity 32 (CAS CATO-C4X-303332)
- N-(3-Fluorophenyl)-5-methyl-12-oxo-5H,5aH,6H,7H,8H,9H,10H,12H-azepino[2,1-b]quinazoline-3-carboxamide (CAS 1775511-43-7)
- Paliperidone Impurity 56 (CAS CATO-C4X-172456)
- 2-Methyl-6-morpholinonicotinaldehyde (CAS 1355225-98-7)
- 2-(4-Methoxyphenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-46-1)
- 1,1,3,3-Tetrafluoro-2-propanone (CAS 360-52-1)
- Cefdinir Impurity 24 (CAS CATO-C4X-121024)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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