4-(2,5-Dimethylphenyl)-4-oxobutanoic acid CAS 5394-59-2
| CAS No. | 5394-59-2 |
| Molecular Formula | C12H14O3 |
| Molecular Weight | 206.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-(2,5-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-(2,5-Dimethylphenyl)-4-oxobutanoic acid (CAS 5394-59-2), molecular formula C12H14O3 and molecular weight 206.24 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(2,5-Dimethylphenyl)-4-oxobutanoic acid (C12H14O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C12H14O3 |
| Molecular Weight | 206.24 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 Dimethylphenyl Standards
- Ethyl 2-(3,5-dimethylphenyl)-2-oxoacetate (CAS 100117-62-2)
- 2-(3,4-Dimethylphenyl)-2-oxoethyl acetate (CAS 1134334-96-5)
- Methyl 3-(2,4-dimethylphenyl)-3-oxopropanoate (CAS 1225915-16-1)
- Methyl 3-(2,5-dimethylphenyl)-3-oxopropanoate (CAS 1226202-70-5)
- 4-(2,4-Dimethylphenyl)-4-oxobutanoic acid (CAS 15880-03-2)
- 4-(3,4-Dimethylphenyl)-4-oxobutanoic acid (CAS 51036-98-7)
- 4-(3,5-Dimethylphenyl)-4-oxobutyric acid (CAS 36440-58-1)
- Ethyl 2-(2,3-dimethylphenyl)-2-oxoacetate (CAS 951888-25-8)
Recommended Standards
- 4-(2,3-dihydro-1,4-benzodioxin-6-yl)butan-2-one (CAS 30830-56-9)
- 4-(2-Fluorophenyl)thiophene-2-carbaldehyde (CAS 893736-44-2)
- 4-(2,2-Dimethylpropanoyl)benzoic acid (CAS 32018-31-8)
- 4-(2-Nitrophenyl)piperidine (CAS 858850-23-4)
- Butyl Isobutyrate (CAS 97-87-0)
- Semduramicin (CAS 113378-31-7)
- 3-Fluoro-6-hydroxypicolinonitrile (CAS 1807298-28-7)
- Bicyclo[3.1.0]Hexan-6-amine (CAS 61888-99-1)
- trans-4'-Cyano-[1,1'-biphenyl]-4-yl 4-ethylcyclohexanecarboxylate (CAS 67284-56-4)
- Terazosin EP Impurity O (CAS 547730-06-3)
- Methyl 4-amino-5-bromopicolinate (CAS 1782230-72-1)
- [4-(Aminomethyl)bicyclo[2.2.2]oct-1-yl]methanol (CAS 916304-06-8)
- Ethyl 4,6-dichloroquinazoline-2-carboxylate (CAS 150449-99-3)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
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