4-Oxo-4-[4-(propan-2-yl)phenyl]butanoic acid CAS 6947-81-5
| CAS No. | 6947-81-5 |
| Molecular Formula | C13H16O3 |
| Molecular Weight | 220.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-Oxo-4-[4-(propan-2-yl)phenyl]butanoic acid (CAS 6947-81-5), a certified reference material (molecular formula C13H16O3, MW 220.26 g/mol) for analytical method development and quality control.
4-Oxo-4-[4-(propan-2-yl)phenyl]butanoic acid (C13H16O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, 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 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).
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.) | 1958 |
Related Oxo Standards
- 3-[3-methyl-4-(propan-2-yloxy)phenyl]prop-2-enoic acid (CAS 1369461-10-8)
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- 1-[4-(propan-2-yl)phenyl]-1h-1,2,3,4-tetrazole-5-thiol (CAS 121690-13-9)
- 2-oxo-3-(propan-2-yl)-2,3-dihydro-1H-1,3-benzodiazole-5-carboxylic acid (CAS 1548186-68-0)
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- 1-[2-(Propan-2-yloxy)phenyl]piperazine (CAS 54013-91-1)
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Recommended Standards
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