| CAS No. | 49788-63-8 |
| Molecular Formula | C26H38AuP |
| Molecular Weight | 578.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 578.52 g/mol gives (2-Phenylethynyl)(tricyclohexylphosphine)gold distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(2-Phenylethynyl)(tricyclohexylphosphine)gold (CAS 49788-63-8) is a high-purity analytical reference standard with the molecular formula C26H38AuP and a molecular weight of 578.52 g/mol.
Structurally, (2-Phenylethynyl)(tricyclohexylphosphine)gold (C26H38AuP) contains organophosphorus functionality, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 578.52 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C26H38AuP |
| Molecular Weight | 578.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |