3-(4-Ethylphenyl)-3-methylbutanoic acid CAS 132858-67-4
| CAS No. | 132858-67-4 |
| Molecular Formula | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H18O2, 3-(4-Ethylphenyl)-3-methylbutanoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-(4-Ethylphenyl)-3-methylbutanoic acid (CAS 132858-67-4), molecular formula C13H18O2 and molecular weight 206.28 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
Related Ethylphenyl Standards
- N-(4-ethylphenyl)-3-(methylamino)propanamide (CAS 1248129-50-1)
- 3-(4-Ethylphenyl)-2-methylbutanoic acid (CAS 1525422-42-7)
- 2-(4-Ethylphenyl)-3-methylbutanoic acid (CAS 55776-81-3)
- Methyl 2-(4-ethylphenyl)-2-methylpropanoate (CAS 698394-59-1)
- 3-(4-Ethylphenyl)-1,2,4-oxadiazole-5-thiol (CAS 1339756-90-9)
- 5-(4-ethylphenyl)-1,3,4-oxadiazole-2-thiol (CAS 750607-48-8)
- Ethyl 2-(3-ethylphenyl)-2-oxoacetate (CAS 1373519-65-3)
- 4-(4-Ethylphenyl)-4-oxobutanoic acid (CAS 49594-75-4)
Recommended Standards
- 4-[(Phenylamino)methyl]piperidin-4-ol (CAS 1315577-16-2)
- N-(2-amino-4-methylphenyl)pentanamide (CAS 133085-62-8)
- N-(3,6-dimethylpyridin-2-yl)pivalamide (CAS 1313762-34-3)
- N-(Acetyl-d3)-S-allyl-L-cysteine (CAS 1331907-55-1)
- 2-(4-Bromobenzyl)thiophene (CAS 118150-25-7)
- (2R,3R,4R)-2-(3-((tert-Butyldimethylsilyl)oxy)benzyl)-4-((tetrahydro-2H-pyran-2-yl)oxy)-3-((3S,E)-3-((tetrahydro-2H-pyran-2-yl)oxy)oct-1-en-1-yl)cyclopentanone 0028AC 65423-57-6 C36H58O6Si (CAS 65423-57-6)
- 1-(2,2,2-Trifluoroethyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1393568-30-3)
- Cinnamoylglycine (CAS 62430-40-4)
- 3-(Chloromethyl)-5-(3-fluorophenyl)-1,2,4-oxadiazole (CAS 491842-63-8)
- N-Hydrazinocarbonylmethyl-4,N-dimethyl-benzenesulfonamide (CAS 331236-63-6)
- methyl 6-chloropyridazine-4-carboxylate (CAS 1093860-48-0)
- (Z)-2,2-Dimethyl-5-((phenylsulfonyl)methylene)tetrahydrofuran (CAS 89664-43-7)
- 3-Bromo-2-(chloromethyl)pyridine (CAS 122851-69-8)
- Hexapeptide-10 (CAS 146439-94-3)
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