4-(4-Ethoxyphenyl)butanoic acid CAS 58472-30-3
| CAS No. | 58472-30-3 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(4-Ethoxyphenyl)butanoic acid (CAS 58472-30-3) is a high-purity analytical reference standard with the molecular formula C12H16O3 and a molecular weight of 208.25 g/mol.
4-(4-Ethoxyphenyl)butanoic acid (C12H16O3) 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 | C12H16O3 |
| Molecular Weight | 208.25 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.) | 1973 |
Related Ethoxyphenyl Standards
- 3-(4-ethoxyphenyl)-2-methylpropanoic acid (CAS 1017146-71-2)
- 3-(3-Ethoxyphenyl)-2-methylpropanoic acid (CAS 1017369-54-8)
- Methyl 2-(3-ethoxyphenyl)propanoate (CAS 1479914-42-5)
- 2-(4-Ethoxyphenyl)butanoic acid (CAS 61147-35-1)
- 3-(4-Ethoxyphenyl)butanoic acid (CAS 6555-32-4)
- 4-(3-Ethoxyphenyl)butanoic acid (CAS 857830-04-7)
- Ethyl 2-(4-ethoxyphenyl)acetate (CAS 40784-88-1)
- 2-((2-Ethoxyphenyl)amino)propanamide (CAS 1096160-22-3)
Recommended Standards
- 4-(3-Methoxyphenyl)-3-methylbutanoic acid (CAS 54961-40-9)
- 4-(4-ethylphenoxy)butanoic Acid (CAS 87411-26-5)
- 4-(4-methoxy-2-methylphenyl)butanoic Acid (CAS 6307-30-8)
- 4-(3,5-Dimethylphenoxy)butanoic acid (CAS 57932-18-0)
- Acryl fentanyl HCl (CAS 79279-03-1)
- Methyl 6-Chloropyrimidine-4-carboxylate (CAS 6627-22-1)
- 2-(4-Isobutylphenyl)quinoline-4-carbonyl chloride (CAS 1160264-74-3)
- Metronidazole-hydroxy D2 (CAS 2196180-19-3)
- 4-(Dimethylamino)-2-methylisoindoline-1,3-dione (CAS 16808-96-1)
- 2-Amino-5-(2-chloropyrimidin-4-yl)benzonitrile (CAS 1292317-50-0)
- 1-Benzylazetidin-3-one (CAS 156303-83-2)
- 1h-Pyrrole-2-carbothioamide (CAS 37488-45-2)
- 20-HETE (CAS 79551-86-3)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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