1-(5-Ethyl-2-hydroxyphenyl)-3-(4-chlorophenyl)-1, 3-propanedione CAS 328925-71-9
| CAS No. | 328925-71-9 |
| Molecular Formula | C17H15ClO3 |
| Molecular Weight | 302.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(5-Ethyl-2-hydroxyphenyl)-3-(4-chlorophenyl)-1, 3-propanedione is closely related to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(5-Ethyl-2-hydroxyphenyl)-3-(4-chlorophenyl)-1, 3-propanedione (CAS 328925-71-9) is a high-purity analytical reference standard with the molecular formula C17H15ClO3 and a molecular weight of 302.75 g/mol.
1-(5-Ethyl-2-hydroxyphenyl)-3-(4-chlorophenyl)-1, 3-propanedione (C17H15ClO3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C17H15ClO3 |
| Molecular Weight | 302.75 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 2025 |
| Halogen Content | Cl-containing |
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Recommended Standards
- (E)-3-(4-Chlorophenyl)-1-(3,4-dimethoxyphenyl)prop-2-en-1-one (CAS 53744-30-2)
- 2-(4-Chlorophenyl)-4-(3-methylphenyl)-4-oxobutanoic acid (CAS 344281-24-9)
- (E)-3-(3-chloro-4-methoxyphenyl)-1-(3-methoxyphenyl)prop-2-en-1-one (CAS 861207-60-5)
- 3-(2-Chlorophenyl)-4,6-dimethoxy-2-methylbenzofuran (CAS 922140-93-0)
- 4-Amino-N-cyclopentyl-2-thioxo-3-(o-tolyl)-2,3-dihydrothiazole-5-carboxamide (CAS 1021224-77-0)
- 2-Bromo-6-methoxy-4-{[(propan-2-yl)amino]methyl}phenol hydrochloride (CAS 1240567-72-9)
- 5-Bromo-7-chloro-2,3-dihydrobenzo[b][1,4]dioxine (CAS 936249-25-1)
- 5-(Methylthio)picolinic acid (CAS 74470-29-4)
- 2-(Trifluoromethyl)pyridine (CAS 368-48-9)
- D-Arginine 1,1-Dimethylethyl Ester (CAS 130752-28-2)
- 4-tert-Butyl-o-xylene (CAS 7397-06-0)
- 6,7-Dihydro-1H-[1,2,3]triazolo[4,5-c]pyridine-5(4H)-carbaldehyde (CAS 485402-45-7)
- 1-(3-Bromo-2,2-dimethylpropyl)-2-chlorobenzene (CAS 1472726-51-4)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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