| CAS No. | 4724-47-4 |
| Molecular Formula | C18H39O3P |
| Molecular Weight | 334.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 4724-47-4 Octadecylphosphonic acid Phosphonic acid, P-octadecyl- Phosphonic acid, octadecyl- EINECS 225-216-4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
4724-47-4 Octadecylphosphonic acid Phosphonic acid, P-octadecyl- Phosphonic acid, octadecyl- EINECS 225-216-4 (CAS 4724-47-4) is a high-purity analytical reference standard with the molecular formula C18H39O3P and a molecular weight of 334.47 g/mol.
The molecular framework of 4724-47-4 Octadecylphosphonic acid Phosphonic acid, P-octadecyl- Phosphonic acid, octadecyl- EINECS 225-216-4 (C18H39O3P) is characterized by a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C18H39O3P |
| Molecular Weight | 334.47 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 1958 |