Ethyl 3-((4-chlorophenyl)amino)-2-(2,5-dioxotetrahydrofuran-3-yl)but-2-enoate CAS 216876-53-8
| CAS No. | 216876-53-8 |
| Molecular Formula | C16H16ClNO5 |
| Molecular Weight | 337.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 3-((4-chlorophenyl)amino)-2-(2,5-dioxotetrahydrofuran-3-yl)but-2-enoate is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ethyl 3-((4-chlorophenyl)amino)-2-(2,5-dioxotetrahydrofuran-3-yl)but-2-enoate (CAS 216876-53-8), a certified reference material (molecular formula C16H16ClNO5, MW 337.75 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H16ClNO5, Ethyl 3-((4-chlorophenyl)amino)-2-(2,5-dioxotetrahydrofuran-3-yl)but-2-enoate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 337.75 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C16H16ClNO5 |
| Molecular Weight | 337.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2018 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3-{[(2,6-dichlorophenyl)methyl]sulfanyl}thiophene-2-carboxylic acid (CAS 250714-86-4)
- 2-(tert-Butoxy)-6-cyclopropoxy-N-methylaniline (CAS 1243348-62-0)
- N-cyclopropyl-2,3-dihydro-1H-inden-1-amine (CAS 52681-23-9)
- (3S,4R)-3-bromo-4-hydroxytetrahydrothiophene 1,1-dioxide (CAS 1820580-20-8)
- (2R)-1-(tert-Butyldimethylsilyl)-4-oxoazetidine-2-carboxylic acid (CAS 162856-35-1)
- Diethyl 2-methylsuccinate (CAS 4676-51-1)
- 5-(3,4-Dichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 62036-23-1)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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