Ethyl 5-(4-hexylphenyl)-5-oxopentanoate CAS 138247-14-0
| CAS No. | 138247-14-0 |
| Molecular Formula | C19H28O3 |
| Molecular Weight | 304.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 5-(4-hexylphenyl)-5-oxopentanoate (CAS 138247-14-0), a certified reference material (molecular formula C19H28O3, MW 304.42 g/mol) for analytical method development and quality control.
Structurally, Ethyl 5-(4-hexylphenyl)-5-oxopentanoate (C19H28O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 304.42 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C19H28O3 |
| Molecular Weight | 304.42 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
Related Ethyl Standards
- 898791-55-4 7-(4-Hexylphenyl)-7-oxoheptanoic acid DTXSID60645431 (CAS 898791-55-4)
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- 1-Ethyl-4-((4-hexylphenyl)ethynyl)benzene (CAS 117923-34-9)
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- 2-(2-Fluoropyridin-3-yl)acetonitrile (CAS 1000529-09-8)
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- 2-(7-Chloro-1H-indol-3-yl)ethanol (CAS 41340-34-5)
- Auranofin (CAS 34031-32-8)
- 1-(2-Ethylbenzofuran-3-yl)ethanone (CAS 4265-18-3)
- 4-Fluoro-2-morpholinoaniline (CAS 232951-87-0)
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- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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