| CAS No. | 5139-89-9 |
| Molecular Formula | C10H17ClO2 |
| Molecular Weight | 204.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 204.69 g/mol gives 5139-89-9 4-Phenoxybutyryl chloride EINECS 225-903-9 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5139-89-9 4-Phenoxybutyryl chloride EINECS 225-903-9 (CAS 5139-89-9), a certified reference material (molecular formula C10H17ClO2, MW 204.69 g/mol) for analytical method development and quality control.
5139-89-9 4-Phenoxybutyryl chloride EINECS 225-903-9 (C10H17ClO2) contains a carboxylic acid group, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
| Molecular Formula | C10H17ClO2 |
| Molecular Weight | 204.69 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |