Diazomethyl-phosphonic Acid Diethyl Ester CAS 25411-73-8
| CAS No. | 25411-73-8 |
| Molecular Formula | C5H11N2O3P |
| Molecular Weight | 178.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Diazomethyl-phosphonic Acid Diethyl Ester.
Diazomethyl-phosphonic Acid Diethyl Ester (CAS 25411-73-8), molecular formula C5H11N2O3P and molecular weight 178.13 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diazomethyl-phosphonic Acid Diethyl Ester (C5H11N2O3P) contains an amide group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.5, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 178.13 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Diazomethyl-phosphonic Acid Diethyl Ester 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.
Physical & Chemical Properties
| Molecular Formula | C5H11N2O3P |
| Molecular Weight | 178.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 2 |
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