2-(3-Chlorophenyl)-4H-chromen-4-one CAS 1849-61-2
| CAS No. | 1849-61-2 |
| Molecular Formula | C15H9ClO2 |
| Molecular Weight | 256.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.68 g/mol gives 2-(3-Chlorophenyl)-4H-chromen-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-(3-Chlorophenyl)-4H-chromen-4-one (CAS 1849-61-2), a certified reference material (molecular formula C15H9ClO2, MW 256.68 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H9ClO2, 2-(3-Chlorophenyl)-4H-chromen-4-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 256.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C15H9ClO2 |
| Molecular Weight | 256.68 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 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-2H-chromen-2-one (CAS 10465-91-5)
- 2-(4-Chlorophenyl)-1H-indene-1,3(2H)-dione (CAS 1146-99-2)
- 2-(4-Chlorophenyl)-5-methyl-1,3-dioxane-5-carboxylic acid (CAS 385381-18-0)
- 2-[(4-chlorophenyl)methyl]pentanedioic acid (CAS 24867-04-7)
- 3-(2’-Chlorophenyl)coumarin (CAS 69976-30-3)
- 3-(3’-Chlorophenyl)coumarin (CAS 23000-36-4)
- 3-(4-chlorophenyl)-3-methylpentanedioic acid (CAS 91393-73-6)
- 2-(1-(4-Chlorophenyl)-1H-pyrazol-5-yl)pyrimidine (CAS 1269291-24-8)
Recommended Standards
- Ethyl 8-(chloromethyl)-4H-benzo[d][1,3]dioxine-6-carboxylate (CAS 175205-83-1)
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- 4-Chloro-2-phenyl-1H-indene-1,3(2H)-dione (CAS 16707-79-2)
- (2E)-3-(3-chloro-4-ethoxy-5-methoxyphenyl)acrylic acid (CAS 749920-19-2)
- 1-(2-fluoropyridin-4-yl)piperazine (CAS 1260227-71-1)
- 5-Chloro-1,2,4-oxadiazole (CAS 1346808-37-4)
- Methyl 4-vinylbicyclo[2.2.2]octane-1-carboxylate (CAS 719274-85-8)
- Methyl 4-(tert-butyl)-1-oxaspiro[2.5]octane-2-carboxylate (CAS 1560670-43-0)
- 2-Propenoic acid, 2-methyl-, 1,1'-(1,2-ethanediyl) ester, polymer with 2-chloro-1,3-butadiene (CAS 26655-06-1)
- 2-[4-(aminomethyl)phenoxy]-N-(4-chlorophenyl)acetamide hydrochloride (CAS 1258639-44-9)
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- Calcitriol Impurity 12 (CAS CATO-C4X-151012)
- 2-Amino-3-(2-(pyrrolidin-1-yl)phenyl)propanoic acid (CAS 1259997-11-9)
- Neuropeptide SF (human) (CAS 192387-39-6)
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