Ethyl 3-(4-ethylphenyl)-3-oxopropanoate CAS 51725-80-5
| CAS No. | 51725-80-5 |
| Molecular Formula | C13H16O3 |
| Molecular Weight | 220.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 3-(4-ethylphenyl)-3-oxopropanoate.
Ethyl 3-(4-ethylphenyl)-3-oxopropanoate (CAS 51725-80-5), molecular formula C13H16O3 and molecular weight 220.26 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Ethyl 3-(4-ethylphenyl)-3-oxopropanoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H16O3 |
| Molecular Weight | 220.26 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Ethyl Standards
- Ethyl 3-(2-ethylphenyl)-3-oxopropanoate (CAS 1194825-75-6)
- 5-(4-Ethylphenyl)-5-oxovaleric acid (CAS 34670-04-7)
- Methyl 4-(4-ethylphenyl)-4-oxobutanoate (CAS 56705-44-3)
- 1-(2-Ethylphenyl)-2-mercapto-1H-imidazol-5(4H)-one (CAS 186822-57-1)
- 1-(3-Ethylphenyl)-2-sulfanyl-4,5-dihydro-1h-imidazol-5-one (CAS 852217-66-4)
- N-(4-ethylphenyl)-5,6-dihydro-4H-1,3-thiazin-2-amine (CAS 380349-35-9)
- 2-(4-Ethylphenyl)-2-(pyrrolidin-1-yl)ethanol (CAS 1225994-92-2)
- 4-(4-Ethylphenyl)-1-methylpiperidin-4-ol (CAS 180912-09-8)
Recommended Standards
- Ethyl 3-(4-acetylphenyl)propanoate (CAS 6337-70-8)
- Ethyl 3-(4-methoxyphenyl)but-2-enoate (CAS 7706-82-3)
- Ethyl 3-(3-ethoxyphenyl)acrylate (CAS 57293-23-9)
- Ethyl 3-(allyloxy)-2-methylbenzoate (CAS 897050-20-3)
- 4-(1,3-benzoxazol-2-yl)benzaldehyde (CAS 27395-93-3)
- 1-(1h-1,3-Benzodiazol-2-yl)-2-phenylcyclopropane-1-carboxylic acid (CAS 929974-73-2)
- Morpholine-d9 (CAS 203578-31-8)
- Ethyl 5-fluoro-2-mercaptobenzoate (CAS 870703-85-8)
- 5-(2,6-Difluorophenyl)pyrimidin-2-ol (CAS 1111108-20-3)
- (4-(1H-pyrrol-1-yl)phenyl)(piperidin-1-yl)methanone (CAS 439097-44-6)
- 2-Phenyl-5-(o-tolyl)-1,3,4-thiadiazole (CAS 17453-15-5)
- 1-tert-Butyl 3-ethyl 3-(aminomethyl)azetidine-1,3-dicarboxylate (CAS 1245917-69-4)
- Tert-butyl 2-(2-phenoxy-1-((2,2,2-trifluoroethyl)imino)ethyl)hydrazine-1-carboxylate (CAS 1053657-91-2)
- 3AEEA-Semaglutide(Endo-AEEA-Semaglutide) (CAS CATO-C4X-2226265)
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