(2E)-1-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one CAS 940291-94-1
| CAS No. | 940291-94-1 |
| Molecular Formula | C19H20O4 |
| Molecular Weight | 312.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (2E)-1-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 940291-94-1), a certified reference material (molecular formula C19H20O4, MW 312.36 g/mol) for analytical method development and quality control.
(2E)-1-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (C19H20O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C19H20O4 |
| Molecular Weight | 312.36 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.) | 1987 |
Related E Standards
- (2E)-1-(4-Methylphenyl)-3-(2,3,4-trimethoxyphenyl)prop-2-en-1-one (CAS 1043387-41-2)
- (2E)-1-(2-Methylphenyl)-3-(2,3,4-trimethoxyphenyl)prop-2-en-1-one (CAS 1354941-33-5)
- (2E)-1-(2-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 1354941-85-7)
- (3Z)-3-[(3-Methylphenyl)imino]-1-phenyl-2,3-dihydro-1H-indol-2-one (CAS 303984-60-3)
- (3Z)-3-[(4-Methylphenyl)imino]-1-phenyl-2,3-dihydro-1H-indol-2-one (CAS 303984-52-3)
- Ethyl 4-[(4-methylphenyl)sulfonyl]-1-piperazinecarboxylate (CAS 27106-47-4)
- 1-(1-(4-Methylphenyl)ethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1604037-05-9)
- 3-Methyl-2-[({[(4-methylphenyl)sulfonyl]amino}carbonyl)imino]-1,3-thiazole (CAS 866011-11-2)
Recommended Standards
- (2E)-1-(2,5-Dimethoxyphenyl)-3-(2-ethoxyphenyl)prop-2-en-1-one (CAS 850358-96-2)
- (2E)-3-(2,3-Dimethoxyphenyl)-1-(4-ethoxyphenyl)prop-2-en-1-one (CAS 351339-41-8)
- (2E)-1-(2,4-Dimethoxyphenyl)-3-(4-ethoxyphenyl)prop-2-en-1-one (CAS 908106-78-5)
- (2E)-3-(2,5-Dimethoxyphenyl)-1-(4-ethoxyphenyl)prop-2-en-1-one (CAS 358343-65-4)
- 2-Chloro-4-(difluoromethyl)-3,5-diiodopyridine (CAS 1806823-90-4)
- 2-Amino-2-methylcyclohexane-1-carboxylic acid hydrochloride (CAS 1423025-63-1)
- (Sulfamoylamino)methylbenzene (CAS 14101-58-7)
- (R)-3-bromo-4-(pyrrolidin-2-yl)aniline (CAS 1389348-42-8)
- Methyl 2-((4-formyl-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)thio)benzoate (CAS 321553-50-8)
- Cefadroxil Impurity 40 (CAS 646536-87-0)
- 1,8-Naphthyridin-2-amine HCl (CAS 1820741-11-4)
- Benzothiazol-2-yl-(2-ethoxy-phenyl)-amine (CAS 379729-89-2)
- (4-Chlorophenyl)(2,4-difluorobenzyl)sulfane (CAS 1443311-91-8)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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