Methyl (2E)-3-[(4-ethoxyphenyl)amino]-2-(4-methylbenzenesulfonyl)prop-2-enoate CAS 1327181-06-5
| CAS No. | 1327181-06-5 |
| Molecular Formula | C19H21NO5S |
| Molecular Weight | 375.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl (2E)-3-[(4-ethoxyphenyl)amino]-2-(4-methylbenzenesulfonyl)prop-2-enoate (CAS 1327181-06-5) is a high-purity analytical reference standard with the molecular formula C19H21NO5S and a molecular weight of 375.44 g/mol.
Based on its molecular formula C19H21NO5S, Methyl (2E)-3-[(4-ethoxyphenyl)amino]-2-(4-methylbenzenesulfonyl)prop-2-enoate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 375.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H21NO5S |
| Molecular Weight | 375.44 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Methyl (2Z)-2-(3,4-dimethylbenzenesulfonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 1327179-64-5)
- Methyl (2Z)-2-(4-ethylbenzenesulfonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 1327185-29-4)
- Methyl (2Z)-3-[(4-ethylphenyl)amino]-2-(4-methoxybenzenesulfonyl)prop-2-enoate (CAS 1327168-10-4)
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