(2E)-1-(3,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one CAS 183798-71-2
| CAS No. | 183798-71-2 |
| Molecular Formula | C17H14Cl2O3 |
| Molecular Weight | 337.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2E)-1-(3,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-71-2) is a high-purity analytical reference standard with the molecular formula C17H14Cl2O3 and a molecular weight of 337.20 g/mol.
Based on its molecular formula C17H14Cl2O3, (2E)-1-(3,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 337.20 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.
Physical & Chemical Properties
| Molecular Formula | C17H14Cl2O3 |
| Molecular Weight | 337.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | Cl-containing |
Related E Standards
- (2E)-1-(2,5-Dichlorophenyl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one (CAS 1004008-99-4)
- (2E)-3-(2,4-Dichlorophenyl)-1-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 171365-99-4)
- (2E)-1-(2,5-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-63-2)
- (2E)-1-(2,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 874346-52-8)
- (2E)-1-(2,4-Dichlorophenyl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one (CAS 925703-41-9)
- (2E)-1-(3,4-Dichlorophenyl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one (CAS 200710-48-1)
- (2E)-1-(3,4-Dichlorophenyl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one (CAS 200710-49-2)
- (2E)-3-(2,4-Dichlorophenyl)-1-(2,5-dimethoxyphenyl)prop-2-en-1-one (CAS 219488-08-1)
Recommended Standards
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- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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