Diethyl (E)-(1,1-difluoro-2-hydroxy-4-phenylbut-3-en-1-yl)phosphonate CAS 1041194-07-3
| CAS No. | 1041194-07-3 |
| Molecular Formula | C14H19F2O4P |
| Molecular Weight | 320.27 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.
Diethyl (E)-(1,1-difluoro-2-hydroxy-4-phenylbut-3-en-1-yl)phosphonate (CAS 1041194-07-3), molecular formula C14H19F2O4P and molecular weight 320.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, Diethyl (E)-(1,1-difluoro-2-hydroxy-4-phenylbut-3-en-1-yl)phosphonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C14H19F2O4P |
| Molecular Weight | 320.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
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Recommended Standards
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- Ethyl 2-(6-bromopyridin-2-yl)acetate (CAS 955369-63-8)
- 1-(tert-Butyl)piperidin-4-amine (CAS 160357-95-9)
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- 2-(4-(tert-Butoxycarbonyl)phenyl)-2-hydroxyacetic acid (CAS 1263282-79-6)
- N-(3-Amino-4-methylphenyl)-3-(trifluoromethyl)benzamide, 97% (CAS 30069-31-9)
- 2-Mercapto-1-(m-tolyl)pyrimidine-4,6(1H,5H)-dione (CAS 93341-40-3)
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- N2,N2-diethyl-5-nitropyrimidine-2,4-diamine (CAS 856973-04-1)
- Smac-N7 Peptide (CAS 401913-57-3)
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