(3E)-3-(3,4-Dimethoxyphenyl)-4-[(3,4-dimethylphenyl)amino]but-3-en-2-one CAS 339017-33-3
| CAS No. | 339017-33-3 |
| Molecular Formula | C20H23NO3 |
| Molecular Weight | 325.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (3E)-3-(3,4-Dimethoxyphenyl)-4-[(3,4-dimethylphenyl)amino]but-3-en-2-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(3E)-3-(3,4-Dimethoxyphenyl)-4-[(3,4-dimethylphenyl)amino]but-3-en-2-one (CAS 339017-33-3) is a high-purity analytical reference standard with the molecular formula C20H23NO3 and a molecular weight of 325.40 g/mol.
Based on its molecular formula C20H23NO3, (3E)-3-(3,4-Dimethoxyphenyl)-4-[(3,4-dimethylphenyl)amino]but-3-en-2-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.40 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).
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 | C20H23NO3 |
| Molecular Weight | 325.40 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 2025 |
| Nitrogen Atoms | 1 |
Related E Standards
- N-(2,5-dimethoxyphenyl)-N-(1-phenylcyclopentyl)formamide (CAS 1023532-01-5)
- N-(3,4-dimethoxyphenyl)-1-phenylcyclopentane-1-carboxamide (CAS 923844-17-1)
- 6-(3,4-Dimethoxyphenyl)-3-(pyrrolidin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1706432-91-8)
- 6-(2,5-Dimethoxyphenyl)-3-(pyrrolidin-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1706437-65-1)
- 6-(2,5-Dimethoxyphenyl)-3-(pyrrolidin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1706437-67-3)
- n-(3,4-Dimethoxyphenyl)-2-(1h-indazol-3-yl)-n-methylacetamide (CAS 1427962-22-8)
- 1-Benzyl-4-(2,4-dimethoxyphenyl)-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 861206-38-4)
- 3-[2-(2,4-dimethoxyphenyl)-1h-indol-3-yl]propanoic acid (CAS 926259-58-7)
Recommended Standards
- (3,4-Dihydro-2H-pyrano[2,3-b]quinolin-7-yl)(trans-4-methoxycyclohexyl)methanone (CAS 409345-31-9)
- (3'-Oxo-1-azabicyclo[2.2.2]oct-2'-ylidene)bis(methylene)-2-methylpropanoate (CAS 865293-03-4)
- Methyl 3-(1-(5-ethylpyrimidin-2-yl)piperidin-4-yl)benzoate (CAS 1956364-79-6)
- (5-(Dimethylamino)-4-phenylthiophen-2-yl)(4-fluorophenyl)methanone (CAS 338976-04-8)
- 6-Hydroxy-7-methoxy-3,4-dihydroquinolin-2(1H)-one (CAS 68360-27-0)
- 4-((2-Aminoethyl)(methyl)amino)tetrahydro-2H-thiopyran 1,1-dioxide (CAS 1247181-58-3)
- 2-chloro-5-iodopyrimidin-4-amine (CAS 597551-56-9)
- (6-(Piperazin-1-yl)-5-(trifluoromethyl)pyridin-3-yl)boronic acid (CAS 1609451-12-8)
- 2-(((2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)methyl)(isopropyl)amino)ethanol (CAS 110054-11-0)
- 3-Hydroxy-1H-pyrazolo[4,3-c]quinoline-6-carboxylic acid (CAS 1235659-45-6)
- 50543-78-7 2,5-Dibutoxy-4-(morpholin-4-yl)benzenediazonium tetrafluoroborate Benzenediazonium, 2,5-dibutoxy-4-(4-morpholinyl)-, tetrafluoroborate(1-) (1:1) Benzenediazonium, 2,5-dibutoxy-4-(4-morpholinyl)-, tetrafluoroborate(1-) N-(4-Diazonium-2,5-dibutoxyphenyl)morpholine, tetrafluoroborate 2,5-Dibutoxy-4-morpholinobenzenediazonium fluoborate 2,5-Dibutoxy-4-morpholinobenzenediazonium, tetrafluoroborate 2,5-Dibutoxy-4-(4-morpholinyl)benzenesiazonium, tetrafluoroborate EINECS 256-623-5 4-Morpholino-2,5-dibutoxybenzenediazonium tetrafluoroborate (CAS 50543-78-7)
- Methyl 4-acetyl-6-chloronicotinate (CAS 2097013-54-0)
- Eperisone Impurity 49 TFA (CAS CATO-C4X-227949)
- semaglutide (CAS 782487-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com