15286-11-0 diethyl o-tolylphosphonate o-Tolyl-phosphonic acid diethyl ester CAS 15286-11-0
| CAS No. | 15286-11-0 |
| Molecular Formula | C11H17O3P |
| Molecular Weight | 228.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 15286-11-0 diethyl o-tolylphosphonate o-Tolyl-phosphonic acid diethyl ester (C11H17O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 228.22 g/mol, it falls into the medium-molecular-weight range. 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).
CATO supplies 15286-11-0 diethyl o-tolylphosphonate o-Tolyl-phosphonic acid diethyl ester (CAS 15286-11-0), a certified reference material (molecular formula C11H17O3P, MW 228.22 g/mol) for analytical method development and quality control.
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 | C11H17O3P |
| Molecular Weight | 228.22 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
Related diethyl Standards
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- diethyl p-tolylphosphonate (CAS 1754-46-7)
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