4-Chloroanilidophosphoryldichloride CAS 6971-73-9
| CAS No. | 6971-73-9 |
| Molecular Formula | C6H5Cl3NOP |
| Molecular Weight | 244.44 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.
4-Chloroanilidophosphoryldichloride (CAS 6971-73-9), molecular formula C6H5Cl3NOP and molecular weight 244.44 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloroanilidophosphoryldichloride is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5Cl3NOP |
| Molecular Weight | 244.44 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
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