3-(4-Ethylphenyl)-2,2-dimethylpropanal CAS 67634-15-5
| CAS No. | 67634-15-5 |
| Molecular Formula | C13H18O |
| Molecular Weight | 190.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Ethylphenyl)-2,2-dimethylpropanal (CAS 67634-15-5), molecular formula C13H18O and molecular weight 190.28 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a hydroxyl group, an ether linkage, an aromatic ring system, 3-(4-Ethylphenyl)-2,2-dimethylpropanal is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 190.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C13H18O |
| Molecular Weight | 190.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related Ethylphenyl Standards
- 1-(4-ethylphenyl)-3-methylbutan-1-one (CAS 137128-80-4)
- 1-(3-Ethylphenyl)-3-methylbutan-1-one (CAS 1443305-47-2)
- 1-(2-Ethylphenyl)pentan-1-one (CAS 58534-49-9)
- 1-(4-Ethylphenyl)pentan-1-one (CAS 56705-42-1)
- 1-(4-ethylphenyl)piperazine (CAS 68104-58-5)
- 2-(4-ethylphenyl)piperazine (CAS 910444-30-3)
- trans-2-(2-Ethylphenyl)cyclopentanol (CAS 933674-40-9)
- trans-2-(4-Ethylphenyl)cyclopentanol (CAS 933674-41-0)
Recommended Standards
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)propan-1-amine (CAS 5596-87-2)
- 3-(4-isobutylphenyl)propanal (CAS 40764-03-2)
- 3-(3,4-Dihydro-2H-quinolin-1-yl)propan-1-amine (CAS 2637-31-2)
- 3-(4-Methylpiperidin-1-yl)aniline (CAS 478403-41-7)
- 7-Hydroxy-2-(2-hydroxyphenyl)-5,8-dimethoxychroman-4-one (CAS 1351338-14-1)
- (4,5-Dibromothiophen-3-yl)methanol (CAS 73919-89-8)
- 2,4-Dichloro-6-(difluoromethyl)pyrimidine (CAS 1706464-39-2)
- 2-(6-(Dimethylamino)-4-methylpyridin-3-yl)acetonitrile (CAS 764651-70-9)
- sec-Butylcyclopropane (CAS 5750-02-7)
- 1-(1H-Benzo[d]imidazol-2-yl)piperidin-4-amine hydrochloride (CAS 1185319-13-4)
- 1-(4-(Methylsulfonyl)-2-nitrophenyl)piperidine-4-carboxylic acid (CAS 942474-70-6)
- 5-Iodo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1207543-31-4)
- Ethyl piperidin-4-ylcarbamate (CAS 64951-36-6)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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