Methoxytris(pentafluorophenyl)silane CAS 223668-78-8
| CAS No. | 223668-78-8 |
| Molecular Formula | C19H3F15OSi |
| Molecular Weight | 560.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Methoxytris(pentafluorophenyl)silane (C19H3F15OSi) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 560.29 g/mol, it falls into the moderately-high-molecular-weight range. 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 Methoxytris(pentafluorophenyl)silane (CAS 223668-78-8), a certified reference material (molecular formula C19H3F15OSi, MW 560.29 g/mol) for analytical method development and quality control.
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.
Physical & Chemical Properties
| Molecular Formula | C19H3F15OSi |
| Molecular Weight | 560.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | F-containing |
Recommended Standards
- 1,4-Dibromo-2,5-bis(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)benzene (CAS 187754-76-3)
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- Macitentan Impurity 1 (CAS 441798-25-0)
- 1-(7-Bromo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indol-3-yl)-2,2-dimethylpropan-1-one (CAS 2390149-41-2)
- 1-[(4-Hydrazinophenyl)methyl]-1H-1,2,4-triazole hydrochloride (CAS 154748-67-1)
- 1,2-Oxazinane Hydrochloride (CAS 54722-74-6)
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- N-(4-Cyclopropyl-6-ethylpyrimidin-2-yl)-5-fluorobenzofuran-2-carboxamide (CAS 2248957-98-2)
- ((1H-Benzo[d]imidazol-2-yl)thio)methanamine (CAS 104905-27-3)
- (1S)-1-[2-(Trifluoromethyl)phenyl]propan-1-ol (CAS 1114384-60-9)
- 2-[(4-Chlorophenyl)methyl]oxirane (CAS 36519-91-2)
- 4-(4-Chlorobenzamido)benzoic acid (CAS 70204-56-7)
- methyl 2-chloro-5-nitro-pyridine-3-carboxylate (CAS 190271-88-6)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
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