(E)-2-(3,4-dimethoxyphenyl)-N-(p-tolyl)ethene-1-sulfonamide CAS 339104-98-2
| CAS No. | 339104-98-2 |
| Molecular Formula | C17H19NO4S |
| Molecular Weight | 333.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H19NO4S, (E)-2-(3,4-dimethoxyphenyl)-N-(p-tolyl)ethene-1-sulfonamide 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 333.40 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).
(E)-2-(3,4-dimethoxyphenyl)-N-(p-tolyl)ethene-1-sulfonamide (CAS 339104-98-2) is a high-purity analytical reference standard with the molecular formula C17H19NO4S and a molecular weight of 333.40 g/mol.
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 | C17H19NO4S |
| Molecular Weight | 333.40 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related E Standards
- n-(2,5-Dimethoxyphenyl)-2-((4,6-dimethylpyrimidin-2-yl)thio)acetamide (CAS 386765-86-2)
- (E)-3-(3,4-Dimethoxyphenyl)-1-[4-(1H-pyrrol-1-yl)phenyl]-2-propen-1-one (CAS 1393645-69-6)
- 2-(3,4-Dimethoxyphenyl)-N-(2-(4-fluorophenoxy)ethyl)acetamide (CAS 1105227-51-7)
- (3,4-Dimethoxyphenyl)methanamine hydrochloride (CAS 6967-51-7)
- N-(2,5-dimethoxyphenyl)-3-hydroxy-1-oxo-1H-indene-2-carbimidoyl cyanide (CAS 685550-63-4)
- 1-(3,4-Dimethoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol (CAS 10535-17-8)
- 1,2-Bis(2,3-dimethoxyphenyl)ethane-1,2-diol (CAS 64158-28-7)
- (E)-1-(2-(3,4-dimethoxyphenyl)-4-methylthiazol-5-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 478248-63-4)
Recommended Standards
- (3,4-Difluorophenyl)(4-(thiomorpholinomethyl)phenyl)methanone (CAS 898783-22-7)
- (E)-Methoxy[1-(4-methoxyphenyl)-2-(4-methylbenzenesulfonyl)ethylidene]amine (CAS 338400-80-9)
- (2,5-Diethoxy-4-nitrophenyl)(p-tolyl)sulfane (CAS 68400-47-5)
- (E)-N-Benzyl-2-(3,4-dimethoxyphenyl)ethene-1-sulfonamide (CAS 339018-53-0)
- (Z)-4-(Chloromethylene)-2-phenyloxazol-5(4H)-one (CAS 89363-86-0)
- methyl 4-bromo-5-(chlorosulfonyl)-2-fluorobenzoate (CAS 1155910-53-4)
- 2-Chloro-6-propoxypyrazine (CAS 136309-03-0)
- 4-(Phenylamino)tetrahydrofuran-3-ol (CAS 1178915-18-8)
- N-(4-(4-bromophenyl)thiazol-2-yl)nicotinamide (CAS 309293-36-5)
- Ethyl 2-bromo-2-(pyridin-3-yl)acetate (CAS 347186-70-3)
- 2-(Perfluoroethoxy)aniline (CAS 82096-99-9)
- (R)-(-)-Cicutoxin (CAS 505-75-9)
- 2-(3-Bromophenoxy)-N,N-diethylacetamide (CAS 1016749-47-5)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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