Ethyl (E)-3-cyano-4-((3,5-dimethylphenyl)amino)-2-oxobut-3-enoate CAS 338960-10-4
| CAS No. | 338960-10-4 |
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 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 Ethyl (E)-3-cyano-4-((3,5-dimethylphenyl)amino)-2-oxobut-3-enoate.
Ethyl (E)-3-cyano-4-((3,5-dimethylphenyl)amino)-2-oxobut-3-enoate (CAS 338960-10-4), molecular formula C15H16N2O3 and molecular weight 272.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl (E)-3-cyano-4-((3,5-dimethylphenyl)amino)-2-oxobut-3-enoate (C15H16N2O3) is characterized by a nitrogen-containing heterocyclic scaffold, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
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- Eleutherin (CAS 478-36-4)
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- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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