ethyl 4-[(3-methoxyphenyl)amino]-2-oxobut-3-enoate CAS 950110-33-5
| CAS No. | 950110-33-5 |
| Molecular Formula | C13H15NO4 |
| Molecular Weight | 249.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H15NO4, ethyl 4-[(3-methoxyphenyl)amino]-2-oxobut-3-enoate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies ethyl 4-[(3-methoxyphenyl)amino]-2-oxobut-3-enoate (CAS 950110-33-5), a certified reference material (molecular formula C13H15NO4, MW 249.26 g/mol) for analytical method development and quality control.
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.
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 | C13H15NO4 |
| Molecular Weight | 249.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related ethyl Standards
- Methyl 4-(4-methoxyphenyl)-2-oxopyrrolidine-3-carboxylate (CAS 100373-19-1)
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- 2-(2-Methoxyphenyl)-1-methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 1219565-00-0)
- Methyl 1-(4-methoxyphenyl)-5-oxopyrrolidine-3-carboxylate (CAS 133747-97-4)
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- 3-{[(2E)-3-(4-methoxyphenyl)prop-2-enoyl]amino}propanoic acid (CAS 150891-02-4)
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Recommended Standards
- Ethyl 4-(3-oxobutanamido)benzoate (CAS 30764-23-9)
- Ethyl2-cyano-2-(3,5-dimethoxyphenyl)acetate (CAS 861064-92-8)
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- Levosimendan Impurity N2 (CAS 36725-26-5)
- (Z)-4-(Hexyloxy)-4-oxobut-2-enoate (CAS 15420-81-2)
- 3-(tert-Butylthio)-2-chloroaniline (CAS 2055759-82-3)
- 3-(4-Piperidinyl)propionic Acid (CAS 1822-32-8)
- 1,4-Bis(4-methoxyphenyl)buta-1,3-diyne (CAS 22779-05-1)
- 6-Bromo-4,4-dimethylthiochroman (CAS 112110-44-8)
- Lithium tetrakis(4-iodophenyl)borate (CAS 852312-76-6)
- 3-(tert-Butyl)-1-methylpiperazine (CAS 170654-21-4)
- tert-Butyl 3,7-diazabicyclo[4.2.0]octane-3-carboxylate hydrochloride (CAS 2173992-36-2)
- 3,4,5-Trichlorothiophene-2-sulfonyl chloride (CAS 24622-15-9)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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