1,5-Diethyl (2E,4E)-4-{amino[4-(pyridin-2-yl)piperazin-1-yl]methylidene}-2-cyanopent-2-enedioate CAS 338406-36-3
| CAS No. | 338406-36-3 |
| Molecular Formula | C20H25N5O4 |
| Molecular Weight | 399.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 1,5-Diethyl (2E,4E)-4-{amino[4-(pyridin-2-yl)piperazin-1-yl]methylidene}-2-cyanopent-2-enedioate (CAS 338406-36-3), a certified reference material (molecular formula C20H25N5O4, MW 399.44 g/mol) for analytical method development and quality control.
The molecular framework of 1,5-Diethyl (2E,4E)-4-{amino[4-(pyridin-2-yl)piperazin-1-yl]methylidene}-2-cyanopent-2-enedioate (C20H25N5O4) 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H25N5O4 |
| Molecular Weight | 399.44 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
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- 4-Nitrophenyl N,N'-Diacetyl-β-D-chitobioside (CAS 7284-16-4)
- 2-Methoxy-N-pentylbenzamide (CAS 544699-31-2)
- 4-(3,4-Dichlorophenyl)-N,N-dimethyl-5-(methylsulfonyl)pyrimidin-2-amine (CAS 251307-31-0)
- 1-Methyl-3-propyl-1H-imidazol-2(3H)-imine (CAS 785021-21-8)
- 4-Cyclopropyl-1,2,5-thiadiazol-3-amine (CAS 1496127-98-0)
- 1-(2-Chloro-5-nitrobenzoyl)-3-methylpiperazine (CAS 1240575-05-6)
- 5-((2,4-Dinitrophenyl)amino)-2-(phenylamino)benzenesulfonic acid (CAS 15347-52-1)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
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