[(2-Bromo-4-methyl-phenyl)-difluoro-methyl]-phosphonic acid diethyl ester CAS 863977-42-8
| CAS No. | 863977-42-8 |
| Molecular Formula | C12H16BrF2O3P |
| Molecular Weight | 357.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
[(2-Bromo-4-methyl-phenyl)-difluoro-methyl]-phosphonic acid diethyl ester (CAS 863977-42-8), molecular formula C12H16BrF2O3P and molecular weight 357.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H16BrF2O3P, [(2-Bromo-4-methyl-phenyl)-difluoro-methyl]-phosphonic acid diethyl ester contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 357.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C12H16BrF2O3P |
| Molecular Weight | 357.13 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
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