Aceclofenac Ethyl (EsterAceclofenac EP Impurity E) CAS 139272-67-6
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 139272-67-6 |
| Molecular Formula | C18H17Cl2NO4 |
| Molecular Weight | 382.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Aceclofenac Ethyl (EsterAceclofenac EP Impurity E) (CAS 139272-67-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H17Cl2NO4. Molecular weight: 382.24 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H17Cl2NO4 |
| Molecular Weight | 382.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Aceclofenac Standards
- Aceclofenac Impurity 11 (CAS 2517857-21-3)
- Aceclofenac Impurity 12 (CAS CATO-C4X-153112)
- Aceclofenac Impurity 17 (CAS CATO-C4X-153117)
- Aceclofenac Methyl Ester (Aceclofenac EP Impurity D) (CAS 139272-66-5)
- Aceclofenac 13C2 D4 (CAS 1795019-63-4)
- Aceclofenac tert-Butyl Ester (CAS 139272-68-7)
- Aceclofenac (CAS 89796-99-6)
- Aceclofenac EP Impurity G (CAS 1215709-75-3)
Recommended Standards
- Felodipine EP Impurity A (CAS 96382-71-7)
- 2-{[(4-bromo-2,5-dimethoxyphenyl)amino]methylidene}-5,5-dimethylcyclohexane-1,3-dione (CAS 1024165-45-4)
- N-(3-chloro-4-methylphenyl)-2-(2-chloro-6-ethoxy-4-formylphenoxy)acetamide (CAS 694463-65-5)
- Sodium Valproate Impurity 15 (CAS 2163-48-6)
- Cefpodoxime Proxetil EP Impurity G (CAS CATO-C4X-157946)
- (S)-1-(2-fluorophenyl)-4,5,6,7-tetrahydro-1H-indazol-4-amine (CAS 2097360-69-3)
- (E)-2-methyl-4-(o-tolyldiazenyl)aniline hydrochloride (CAS 2298-13-7)
- (2,4,6-Trimethylbenzene-1,3,5-triyl)trimethanamine (CAS 149525-64-4)
- Methyl 5-((4-chloro-3,5-dimethylphenoxy)methyl)furan-2-carboxylate (CAS 438221-88-6)
- D-Pro38-Tirzepatide (CAS CATO-CPTD788901)
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 13829788188 / jacky.chen@cato-chem.com