| CAS No. | 6139-70-4 |
| Molecular Formula | C22H22N2O6 |
| Molecular Weight | 410.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 410.42 g/mol gives Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate (CAS 6139-70-4), a certified reference material (molecular formula C22H22N2O6, MW 410.42 g/mol) for analytical method development and quality control.
Structurally, Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate (C22H22N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 410.42 g/mol, it falls into the moderately-high-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), Diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)malonate 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.
| Molecular Formula | C22H22N2O6 |
| Molecular Weight | 410.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |