3-Benzyl-6-chloro-7-hydroxy-4-methyl-2H-chromen-2-one CAS 109650-11-5
| CAS No. | 109650-11-5 |
| Molecular Formula | C17H13ClO3 |
| Molecular Weight | 300.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, chlorine substitution, 3-Benzyl-6-chloro-7-hydroxy-4-methyl-2H-chromen-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 3-Benzyl-6-chloro-7-hydroxy-4-methyl-2H-chromen-2-one (CAS 109650-11-5), a certified reference material (molecular formula C17H13ClO3, MW 300.74 g/mol) for analytical method development and quality control.
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 | C17H13ClO3 |
| Molecular Weight | 300.74 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
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- Trandolapril Impurity 11 (CAS 87679-38-7)
- (S)-N-methoxy-N-methylpyrrolidine-2-carboxamide (CAS 760164-31-6)
- 4-(1h-Pyrrol-1-yl)benzene-1-sulfonamide (CAS 5438-30-2)
- 5-Bromo-7-chloro-2,3-dihydro-1-benzofuran-3-one (CAS 1153450-18-0)
- 2-Ethoxy-4-methoxy-1-nitrobenzene (CAS 151929-97-4)
- H-Gly-Gly-Lys-Arg-OH acetate salt (CAS 70921-63-0)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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