(Diethylamino)bis(4-trifluoromethylphenyl)phosphane CAS 13685-91-1
| CAS No. | 13685-91-1 |
| Molecular Formula | C18H18F6NP |
| Molecular Weight | 393.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 393.31 g/mol gives (Diethylamino)bis(4-trifluoromethylphenyl)phosphane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(Diethylamino)bis(4-trifluoromethylphenyl)phosphane (CAS 13685-91-1) is a high-purity analytical reference standard with the molecular formula C18H18F6NP and a molecular weight of 393.31 g/mol.
Structurally, (Diethylamino)bis(4-trifluoromethylphenyl)phosphane (C18H18F6NP) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, organophosphorus functionality, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 393.31 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H18F6NP |
| Molecular Weight | 393.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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