2-Chloro-6-ethoxy-4-formylphenyl 4-chlorobenzoate CAS 431926-22-6
| CAS No. | 431926-22-6 |
| Molecular Formula | C16H12Cl2O4 |
| Molecular Weight | 339.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-6-ethoxy-4-formylphenyl 4-chlorobenzoate (C16H12Cl2O4) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2-Chloro-6-ethoxy-4-formylphenyl 4-chlorobenzoate (CAS 431926-22-6), molecular formula C16H12Cl2O4 and molecular weight 339.17 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C16H12Cl2O4 |
| Molecular Weight | 339.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-6-ethoxy-4-formylphenyl 2-chlorobenzoate (CAS 431931-40-7)
- 3-((4-Chloro-3-nitrophenyl)amino)-1-(4-chlorophenyl)propan-1-one (CAS 882748-60-9)
- 3-Chloro-2-{[(6-chloropyridin-3-yl)methyl]sulfanyl}-5-(trifluoromethyl)pyridine (CAS 478048-57-6)
- 3-Chloro-4-(morpholine-4-carboxamido)benzene-1-sulfonyl chloride (CAS 678185-84-7)
- 4-Chloro-2-(2-chloro-6-fluorobenzyl)-6-methyl-1H-pyrrolo[3,4-c]pyridine-1,3(2H)-dione (CAS 261363-77-3)
- 4-Chloro-2-(3-chlorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one (CAS 320421-78-1)
- 4-Chloro-2-(4-chlorophenyl)-5-(4-methylpiperazin-1-yl)pyridazin-3(2H)-one (CAS 353255-44-4)
- 7-Chloro-N-(3-chlorophenyl)-3,4-dihydro-2H-1,4-benzothiazine-4-carboxamide (CAS 182128-52-5)
Recommended Standards
- 2-Ethoxy-4-formylphenyl 2,4-dichlorobenzoate (CAS 444110-64-9)
- 2-(4-(3-(2,4-Dichlorophenyl)ureido)phenyl)acetic acid (CAS 708238-18-0)
- 3-((3,4-Dichlorophenyl)amino)-1-(3-nitrophenyl)propan-1-one (CAS 882748-79-0)
- 1-(4-Iodo-3-methylphenyl)-2,5-dimethyl-1h-pyrrole-3-carbaldehyde (CAS 423750-08-7)
- 6-((Tetrahydro-2H-pyran-2-yl)methoxy)nicotinonitrile (CAS 1016889-38-5)
- n-(Piperidin-3-yl)benzenesulfonamide (CAS 1018458-26-8)
- (2-(Trifluoromethyl)-1H-indol-5-yl)boronic acid (CAS 1236071-90-1)
- 6-Methyl-1-propyl-1H-indole-3-carbaldehyde (CAS 1134334-38-5)
- (E)-[2-(4-Pyridyl)vinyl]boronic Acid (CAS 1345015-37-3)
- 2-(2-((2-Methyl-1H-benzo[d]imidazol-1-yl)methyl)-1H-benzo[d]imidazol-1-yl)acetic acid (CAS 891450-20-7)
- 4-Chloro-2-ethoxybenzaldehyde (CAS 869088-32-4)
- (S)-ethyl 2-((tert-butoxycarbonyl)amino)-3-(4-(1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)phenyl)propanoate (CAS 1428442-18-5)
- Ethyl 5-iodo-1H-indole-2-carboxylate (CAS 623918-49-0)
- Tetrapeptide-3 (CAS 827306-97-8)
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