23438-11-1 Propionic acid, 2-methyl-2-(p-tolyloxy)- 3-06-00-01368 (Beilstein Handbook Reference) Acide methyl-2 (p-methylphenoxy)-2 propionique [French] BRN 1952806 2-Methyl-2-(p-tolyloxy)propionic acid Acide methyl-2 (p-methylphenoxy)-2 propionique CAS 23438-11-1
| CAS No. | 23438-11-1 |
| Molecular Formula | C11H20O3 |
| Molecular Weight | 200.27 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.
CATO supplies 23438-11-1 Propionic acid, 2-methyl-2-(p-tolyloxy)- 3-06-00-01368 (Beilstein Handbook Reference) Acide methyl-2 (p-methylphenoxy)-2 propionique [French] BRN 1952806 2-Methyl-2-(p-tolyloxy)propionic acid Acide methyl-2 (p-methylphenoxy)-2 propionique (CAS 23438-11-1), a certified reference material (molecular formula C11H20O3, MW 200.27 g/mol) for analytical method development and quality control.
The molecular framework of 23438-11-1 Propionic acid, 2-methyl-2-(p-tolyloxy)- 3-06-00-01368 (Beilstein Handbook Reference) Acide methyl-2 (p-methylphenoxy)-2 propionique [French] BRN 1952806 2-Methyl-2-(p-tolyloxy)propionic acid Acide methyl-2 (p-methylphenoxy)-2 propionique (C11H20O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. 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 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.
Physical & Chemical Properties
| Molecular Formula | C11H20O3 |
| Molecular Weight | 200.27 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
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