2-(4-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid CAS 438230-44-5
| CAS No. | 438230-44-5 |
| Molecular Formula | C20H19NO3 |
| Molecular Weight | 321.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid (C20H19NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. 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-(4-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid (CAS 438230-44-5), molecular formula C20H19NO3 and molecular weight 321.37 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.
As a certified reference material (CRM), 2-(4-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H19NO3 |
| Molecular Weight | 321.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Ethoxyphenyl Standards
- Ethyl 4-((4-ethoxyphenyl)carbamoyl)piperazine-1-carboxylate (CAS 1022100-71-5)
- 2-((4-Ethoxyphenyl)amino)-N-(isoquinolin-6-yl)acetamide (CAS 920513-46-8)
- 2-(2-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid (CAS 897554-46-0)
- 2-(3-Ethoxyphenyl)-6,8-dimethylquinoline-4-carboxylic acid (CAS 588674-01-5)
- 2-(3-Ethoxyphenyl)-7,8-dimethylquinoline-4-carboxylic acid (CAS 895967-47-2)
- 2-(4-Ethoxyphenyl)-3,6-dimethylquinoline-4-carboxylic acid (CAS 438218-83-8)
- 2-(4-Ethoxyphenyl)-6-methylquinoline-4-carbohydrazide (CAS 438227-02-2)
- Ethyl 4-((2-ethoxyphenyl)carbamoyl)piperazine-1-carboxylate (CAS 925626-23-9)
Recommended Standards
- 2-(4-Boc-piperazino)-2-(3-pyridyl)acetic acid (CAS 885274-51-1)
- 2-(4-Isobutoxyphenyl)quinoline-4-carboxylic acid (CAS 350997-44-3)
- 2-(4-Aminophenoxy)-N-isopropylquinoline-6-carboxamide (CAS 921211-21-4)
- 2-(4-Isopropoxyphenyl)-6-methylquinoline-4-carboxylic acid (CAS 438220-76-9)
- 1-Chloro-3-ethanesulfonylbenzene (CAS 494870-50-7)
- Chloro(2,3,7,8,12,13,17,18-octaethylporphyrinato)indium(III) (CAS 32125-07-8)
- N-(4-Bromophenyl)-N-(methylsulfonyl)glycine (CAS 425423-24-1)
- 4'-(Aminomethyl)-N-(tert-butyl)-[1,1'-biphenyl]-2-sulfonamide (CAS 154122-65-3)
- 1-(1-Bromoethyl)-4-fluorobenzene (CAS 65130-46-3)
- 7-Chloroquinazoline-4(3H)-thione (CAS 6967-32-4)
- 3-(Ethylamino)propanoic acid (CAS 10478-41-8)
- 2-Pentyl-1H-benzo[d]imidazole (CAS 5851-46-7)
- 8-Methyl-5,8-diazaspiro[3.5]nonan-7-one (CAS 2888530-54-7)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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