Dimethyl (2-oxo-3-(m-tolyloxy)propyl)phosphonate CAS 40666-12-4
| CAS No. | 40666-12-4 |
| Molecular Formula | C12H17O5P |
| Molecular Weight | 272.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dimethyl (2-oxo-3-(m-tolyloxy)propyl)phosphonate (C12H17O5P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 272.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Dimethyl (2-oxo-3-(m-tolyloxy)propyl)phosphonate (CAS 40666-12-4), molecular formula C12H17O5P and molecular weight 272.23 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 | C12H17O5P |
| Molecular Weight | 272.23 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
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- 3-(3,5-Dichlorophenyl)-3-hydroxypropanenitrile (CAS 1542450-39-4)
- 3-(4,5-Dichloro-3-methyl-1h-pyrazol-1-yl)propanenitrile (CAS 1001500-81-7)
- Insulin Glulisine (CAS 207748-29-6)
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