Diethyl 4,4'-(malonylbis(azanediyl))dibenzoate CAS 19288-86-9
| CAS No. | 19288-86-9 |
| Molecular Formula | C21H22N2O6 |
| Molecular Weight | 398.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Diethyl 4,4'-(malonylbis(azanediyl))dibenzoate (C21H22N2O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Diethyl 4,4'-(malonylbis(azanediyl))dibenzoate (CAS 19288-86-9), molecular formula C21H22N2O6 and molecular weight 398.41 g/mol, is a CATO reference standard with documented purity and traceability.
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 4,4'-(malonylbis(azanediyl))dibenzoate 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 | C21H22N2O6 |
| Molecular Weight | 398.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 1,4-Bis((benzyloxy)carbonyl)piperazine-2-carboxylic acid (CAS 191739-36-3)
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- (4-Nitrobenzyl)triphenylphosphonium (CAS 18583-39-6)
- ((3aR,5R,6S,6aR)-6-(Benzoyloxy)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)methyl benzoate (CAS 6893-67-0)
- [(3-Chloro-4-nitrophenyl)methyl]diethylamine (CAS 1881330-49-9)
- (S)-2-amino-N-(3-chlorobenzyl)-N-ethylpropanamide (CAS 1306029-52-6)
- 4,4-Dimethylcyclohexanone-D14 (CAS 4255-62-3（unlabelled）)
- (S)-2-(Methylamino)butan-1-ol (CAS 105157-71-9)
- (S)-3,3'-(2-(6-Bromopyridin-2-yl)-2-(4-fluorophenyl)ethane-1,1-diyl)dipyridine (CAS 875562-80-4)
- N-(5-Amino-2-fluorophenyl)-2-[2-(tert-butyl)-phenoxy]acetamide (CAS 1020053-99-9)
- (E)-N-((1-(3-(Furan-2-yl)acryloyl)piperidin-4-yl)methyl)methanesulfonamide (CAS 1235706-32-7)
- 5-Chloro-6-(methylthio)nicotinaldehyde (CAS 1288998-46-8)
- 2-[4-(pyrimidin-2-yl)piperazin-1-yl]ethan-1-amine trihydrochloride (CAS 1255717-23-7)
- Anti-Inflammatory Peptide 2 (CAS 118850-72-9)
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