| CAS No. | 501939-33-9 |
| Molecular Formula | C17H33O4P |
| Molecular Weight | 332.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 332.42 g/mol gives Dimethyl 2-(triisobutyl-lambda5-phosphanylidene)malonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dimethyl 2-(triisobutyl-lambda5-phosphanylidene)malonate (CAS 501939-33-9) is a high-purity analytical reference standard with the molecular formula C17H33O4P and a molecular weight of 332.42 g/mol.
Based on its molecular formula C17H33O4P, Dimethyl 2-(triisobutyl-lambda5-phosphanylidene)malonate contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 332.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Dimethyl 2-(triisobutyl-lambda5-phosphanylidene)malonate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C17H33O4P |
| Molecular Weight | 332.42 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) | 1.5 |
| CAS Registry Year (est.) | 1984 |