2-(4-Ethoxybenzoyl)benzoic acid CAS 42797-20-6
| CAS No. | 42797-20-6 |
| Molecular Formula | C16H14O4 |
| Molecular Weight | 270.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 270.28 g/mol gives 2-(4-Ethoxybenzoyl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(4-Ethoxybenzoyl)benzoic acid (CAS 42797-20-6), a certified reference material (molecular formula C16H14O4, MW 270.28 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H14O4, 2-(4-Ethoxybenzoyl)benzoic acid contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 270.28 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).
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 | C16H14O4 |
| Molecular Weight | 270.28 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
Related Ethoxybenzoyl Standards
- 2-(3-Ethoxybenzoyl)-N-ethylhydrazine-1-carbothioamide (CAS 650594-88-0)
- 2-(4-Ethoxybenzoyl)-N-ethylhydrazine-1-carbothioamide (CAS 632301-39-4)
- Methyl 5-(4-ethoxybenzoyl)furan-2-carboxylate (CAS 1399658-44-6)
- (2-Ethoxybenzoyl)valine (CAS 1397003-37-0)
- (4-Ethoxybenzoyl)-l-valine (CAS 329789-34-6)
- (2-Ethoxybenzoyl)proline (CAS 1104060-59-4)
- 1706444-80-5 4-(4-Ethoxybenzoyl)quinoline (CAS 1706444-80-5)
- 5-(4-Ethoxybenzoyl)furan-2-carboxylic acid (CAS 1399661-34-7)
Recommended Standards
- 2-(4-Acetylphenoxy)-2-phenylacetic acid (CAS 885949-44-0)
- 2-(4-Methoxybenzoyl)phenyl acetate (CAS 890098-85-8)
- 2-(3,4-Dimethoxyphenyl)benzo[d]oxazol-5-amine (CAS 389081-33-8)
- 2-(4-Methylphenyl)-2-oxoethyl 4-hydroxybenzoate (CAS 473874-83-8)
- 2-(2-((4,6-Diamino-1,3,5-triazin-2-yl)amino)ethoxy)ethanol (CAS 109114-20-7)
- Pazopanib Impurity 22 (CAS 444731-73-1)
- (3-hydroxy-1-naphthyl) acetate (CAS 93182-35-5)
- 4-Bromo-5-fluoro-1,3-benzodioxole (CAS 1427428-42-9)
- 5-Nitro-[1,1'-biphenyl]-2-amine (CAS 29608-75-1)
- Methyl 4-((4-Methyl-1,2,5-oxadiazol-3-yl) methoxy)benzoate (CAS 1018239-24-1)
- 5-hydroxycyclohex-1-ene-1-carbonitrile (CAS 91759-03-4)
- 1,3,3-Trimethyl-2',5'-diphenyl-2',4'-dihydrospiro[indoline-2,3'-pyrazole] (CAS 72619-75-1)
- 5-Hydroxy-1,3-dihydrobenzo[c]thiophene 2,2-dioxide (CAS 142608-09-1)
- Semaglutide Impurity 183 (CAS 159541-28-3)
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