(2E)-1-(3-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one CAS 358656-62-9
| CAS No. | 358656-62-9 |
| Molecular Formula | C19H20O5 |
| Molecular Weight | 328.36 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-(3-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 358656-62-9), a certified reference material (molecular formula C19H20O5, MW 328.36 g/mol) for analytical method development and quality control.
(2E)-1-(3-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (C19H20O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C19H20O5 |
| Molecular Weight | 328.36 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 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.) | 2025 |
Related E Standards
- (2E)-1-(4-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 105686-91-7)
- 1-(4-Methoxyphenyl)-2-phenylquinazolin-4(1H)-one (CAS 1099-99-6)
- (2E)-1-(3-Methoxyphenyl)-3-(2,3,4-trimethoxyphenyl)prop-2-en-1-one (CAS 1287289-48-8)
- (2E)-1-(4-Methoxyphenyl)-3-(2,3,4-trimethoxyphenyl)prop-2-en-1-one (CAS 1639856-65-7)
- (2E)-1-(2-Methoxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 331821-57-9)
- 2-((4-Methoxyphenyl)sulfonamido)-4-methylthiazole-5-carboxylic acid (CAS 951921-91-8)
- 2-(2-((4-Methoxyphenyl)sulfonamido)thiazol-4-yl)acetic acid (CAS 929810-32-2)
- 4-(4-Methoxyphenyl)-5-(4-nitrophenyl)-4H-1,2,4-triazole-3-thiol (CAS 17050-55-4)
Recommended Standards
- (2E)-1,3-Bis(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 79004-62-9)
- 2,2-Dimethyl-6-phenyl-[1,3]dioxolo[4,5-f][1,10]phenanthroline (CAS 1956378-99-6)
- (2E)-1,3-Bis(2,5-Dimethoxyphenyl)prop-2-en-1-one (CAS 219298-68-7)
- Selinidin (CAS 19427-82-8)
- Ethyl 2-(4-hydroxytetrahydro-2H-pyran-4-yl)acetate (CAS 401811-99-2)
- 2-(4-(Pyrazin-2-yl)piperazin-1-yl)propanoic acid (CAS 1458007-73-2)
- 1-(2-Methoxyethyl)piperidine-3-carboxylic acid (CAS 897094-35-8)
- N-(1-methyl-1H-pyrazol-3-yl)isobutyramide (CAS 62400-46-8)
- Fulvestrant Impurity 20 (CAS CATO-C4X-191720)
- Tert-butyl (1-(3-hydroxypropyl)cyclopropyl)carbamate (CAS 120616-07-1)
- Tert-butyl 5-amino-3-methylisothiazole-4-carboxylate (CAS 1539412-74-2)
- 2,4-Dimethyl-5-(4H-1,2,4-triazol-4-yl)aniline (CAS 1224170-65-3)
- 2-(4-Bromo-7-methoxy-1H-indol-3-yl)acetic acid (CAS 1227577-35-6)
- His-Aib-Semaglutide (CAS CATO-C4X-2226220)
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