Ethyl ((S)-2-cyclopropyl-2-(3-hydroxyphenyl)ethyl)(methyl)phosphinate CAS 2700331-35-5
| CAS No. | 2700331-35-5 |
| Molecular Formula | C14H21O3P |
| Molecular Weight | 268.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl ((S)-2-cyclopropyl-2-(3-hydroxyphenyl)ethyl)(methyl)phosphinate (CAS 2700331-35-5) is a high-purity analytical reference standard with the molecular formula C14H21O3P and a molecular weight of 268.29 g/mol.
The molecular framework of Ethyl ((S)-2-cyclopropyl-2-(3-hydroxyphenyl)ethyl)(methyl)phosphinate (C14H21O3P) is characterized by a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H21O3P |
| Molecular Weight | 268.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
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