Econazole impurity 21 CAS 293759-26-9
| CAS No. | 293759-26-9 |
| Molecular Formula | C8H7Cl3O |
| Molecular Weight | 225.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7Cl3O, Econazole impurity 21 contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.50 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).
Econazole impurity 21 (CAS 293759-26-9) is a certified pharmaceutical impurity reference standard with the molecular formula C8H7Cl3O and a molecular weight of 225.50 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.
CATO manufactures Econazole impurity 21 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 | C8H7Cl3O |
| Molecular Weight | 225.50 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Econazole Standards
- Econazole impurity 20 (CAS CATO-C4X-132720)
- Econazole Impurity 10 (CAS 102993-73-7)
- Econazole Impurity 11 (CAS 4252-78-2)
- 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 27 (CAS 27087-94-1)
Recommended Standards
- Isoconazole Impurity 5 (CAS 13692-14-3)
- 4-Methyl-4-(trichloromethyl)cyclohexa-2,5-dien-1-one (CAS 3274-12-2)
- Luliconazole Impurity 1 (CAS 126534-31-4)
- 2-Chloro-1-(3,4-dichlorophenyl)ethan-1-ol (CAS 53065-95-5)
- Linaclotide Impurity 18 (CAS CATO-C4X-210618)
- Sugammadex sodium Impurity Org198958-2 (CAS 2412953-13-8)
- Amorolfine Impurity 13(Isomer mixture) (CAS 74880-04-9)
- 3-(3-fluoro-4-methoxyphenyl)cyclopent-2-en-1-one (CAS 1499305-24-6)
- 5-(Naphthalen-2-yl)-7-(trifluoromethyl)-2,3-dihydro-1H-1,4-diazepine (CAS 937605-20-4)
- 2-([1,1'-Biphenyl]-4-yl)-3-(methylsulfonyl)-1H-pyrrole (CAS 1707379-25-6)
- 1-(2,6-Difluorobenzyl)-1h-imidazol-2-amine (CAS 1183183-91-6)
- Methyl (2Z)-2-(benzenesulfonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 1327173-71-6)
- Methyl(4-chlorophenyl)glycinatehydrochloride (CAS 59410-89-8)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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