3-(4-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one CAS 15584-08-4
| CAS No. | 15584-08-4 |
| Molecular Formula | C15H9ClO4 |
| Molecular Weight | 288.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(4-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one.
CATO supplies 3-(4-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 15584-08-4), a certified reference material (molecular formula C15H9ClO4, MW 288.68 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H9ClO4, 3-(4-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 288.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C15H9ClO4 |
| Molecular Weight | 288.68 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, keep tightly closed to prevent evaporation |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 2-(3-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 152969-68-1)
- 2-(4-Chlorophenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 152969-69-2)
- 1-(3-Chlorophenyl)-5-(furan-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 957013-17-1)
- 1-(4-Chlorophenyl)-5-(furan-2-yl)-1h-pyrazole-3-carboxylic acid (CAS 956769-53-2)
- 5-((2-Chlorophenyl)amino)-3-methylbenzo[c]isoxazole-4,7-dione (CAS 33262-62-3)
- 5-((3-Chlorophenyl)amino)-3-methylbenzo[c]isoxazole-4,7-dione (CAS 33229-22-0)
- 5-((4-Chlorophenyl)amino)-3-methylbenzo[c]isoxazole-4,7-dione (CAS 51485-59-7)
- 6-(2-Chlorophenyl)-3-methyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 954263-02-6)
Recommended Standards
- 4-(Chlorocarbonyl)-2,6-dimethoxyphenyl ethyl carbonate (CAS 18780-68-2)
- 2-(Chloromethyl)-1,4-dihydroxyanthracene-9,10-dione (CAS 56594-53-7)
- 3-(4-Chlorophenoxy)-7-hydroxy-4H-1-benzopyran-4-one (CAS 137987-94-1)
- 2-[(2-Chloro-6-fluorophenyl)(cyano)methyl]-6-fluorobenzonitrile (CAS 306976-69-2)
- 2-[(3,4-diethoxyphenyl)formamido]acetic acid (CAS 568544-09-2)
- 4-[(E)-2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]benzonitrile (CAS 400083-79-6)
- 1-(2-Butoxy-5-methylphenyl)ethanol (CAS 1156521-36-6)
- Mebendazole impurity 3 (CAS CATO-C4X-27683)
- 2,3-Dihydro-1,3-dioxo-2-(2-propen-1-yl)-1H-isoindole-5-carboxylic acid (CAS 41441-42-3)
- 5-(4-Methylthiophen-3-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1526585-35-2)
- 3-(2-Hydroxyethyl)-1-methylurea (CAS 58168-06-2)
- 5,5'-(Azanediylbis(sulfonyl))bis(2,4-dichlorobenzoic acid) tetrahydrate (CAS 94419-31-5)
- 5-Chloro-2-methoxybenzoyl Chloride (CAS 29568-33-0)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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