4-(4-Methoxy-3,5-dimethylphenyl)-4-oxobutanoic acid CAS 103234-38-4
| CAS No. | 103234-38-4 |
| Molecular Formula | C13H16O4 |
| Molecular Weight | 236.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(4-Methoxy-3,5-dimethylphenyl)-4-oxobutanoic 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.
4-(4-Methoxy-3,5-dimethylphenyl)-4-oxobutanoic acid (CAS 103234-38-4) is a high-purity analytical reference standard with the molecular formula C13H16O4 and a molecular weight of 236.26 g/mol.
Structurally, 4-(4-Methoxy-3,5-dimethylphenyl)-4-oxobutanoic acid (C13H16O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 236.26 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C13H16O4 |
| Molecular Weight | 236.26 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.) | 1986 |
Related Methoxy Standards
- Ethyl 3-(2-methoxy-5-methylphenyl)-3-oxopropanoate (CAS 1039961-29-9)
- Ethyl 2-(4-methoxy-3,5-dimethylphenyl)-2-oxoacetate (CAS 107642-57-9)
- 5-(3-Methoxy-phenyl)-3-oxo-pentanoi cacid methyl ester (CAS 109277-50-1)
- Methyl 2-[2-methoxy-4-(prop-1-en-1-yl)phenoxy]acetate (CAS 1158108-40-7)
- Ethyl 2-(4-methoxy-2,5-dimethylphenyl)-2-oxoacetate (CAS 1226237-40-6)
- Ethyl 3-(2-Methoxy-4-methylphenyl)-3-oxopropanoate (CAS 125041-96-5)
- Ethyl 3-(4-methoxy-2-methylphenyl)-3-oxopropanoate (CAS 1260862-76-7)
- Ethyl 2-(4-methoxy-2,6-dimethylphenyl)-2-oxoacetate (CAS 1368223-20-4)
Recommended Standards
- 2-((Tetrahydro-2H-pyran-2-yl)methoxy)benzoic acid (CAS 1021144-50-2)
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- 4-((Tetrahydro-2H-pyran-2-yl)methoxy)benzoic acid (CAS 1020999-22-7)
- Ethyl 4-(2-methoxyphenyl)-4-oxobutyrate (CAS 103897-42-3)
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