3-(4-Chlorophenyl)-7-(2-oxopropoxy)-2H-chromen-2-one CAS 887860-30-2
| CAS No. | 887860-30-2 |
| Molecular Formula | C18H13ClO4 |
| Molecular Weight | 328.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-(4-Chlorophenyl)-7-(2-oxopropoxy)-2H-chromen-2-one (C18H13ClO4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-(4-Chlorophenyl)-7-(2-oxopropoxy)-2H-chromen-2-one (CAS 887860-30-2) is a high-purity analytical reference standard with the molecular formula C18H13ClO4 and a molecular weight of 328.75 g/mol.
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 | C18H13ClO4 |
| Molecular Weight | 328.75 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
Related Chlorophenyl Standards
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Recommended Standards
- 3-(4-Chlorophenyl)-2-oxo-2H-chromen-7-yl propionate (CAS 869080-11-5)
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- 3-(4-Chlorophenyl)-1-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 618102-41-3)
- 4-(4-Chlorophenyl)-3-methyl-1-(3-nitrophenyl)-1H-pyrazol-5-amine (CAS 321385-91-5)
- Tert-butyl 3-(4-(aminomethyl)phenyl)pyrrolidine-1-carboxylate (CAS 885270-22-4)
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