4-(4-Ethoxy-3-methylphenyl)-4-hydroxybutanoic acid CAS 879053-56-2
| CAS No. | 879053-56-2 |
| Molecular Formula | C13H18O4 |
| Molecular Weight | 238.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(4-Ethoxy-3-methylphenyl)-4-hydroxybutanoic acid (CAS 879053-56-2) is a high-purity analytical reference standard with the molecular formula C13H18O4 and a molecular weight of 238.28 g/mol.
The molecular framework of 4-(4-Ethoxy-3-methylphenyl)-4-hydroxybutanoic acid (C13H18O4) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H18O4 |
| Molecular Weight | 238.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
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- 3-(Fluorosulfonyl)-5-((trimethylsilyl)ethynyl)benzoic acid (CAS 2088829-06-3)
- 5-Bromo-1,3-difluoro-2-iodobenzene (CAS 160976-02-3)
- N,N-dimethyl-3-(piperidin-3-yl)-1H-pyrazole-4-carboxamide dihydrochloride (CAS 1803584-06-6)
- Peptide 438 (CAS CATO-CPTD788438)
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