Triethoxy(pentafluorophenyl)silane CAS 20083-34-5
| CAS No. | 20083-34-5 |
| Molecular Formula | C12H15F5O3Si |
| Molecular Weight | 330.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Triethoxy(pentafluorophenyl)silane (CAS 20083-34-5), molecular formula C12H15F5O3Si and molecular weight 330.32 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Triethoxy(pentafluorophenyl)silane (C12H15F5O3Si) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C12H15F5O3Si |
| Molecular Weight | 330.32 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F-containing |
Related Triethoxy Standards
- Methyl 2-(3,4,5-triethoxy-2-nitrophenyl)acetate (CAS 1142198-17-1)
- 4,4,7-Triethoxy-7-methyl-3,8-dioxa-4,7-disiladecane (CAS 18418-54-7)
- Triethoxy(3-((3-ethyloxetan-3-yl)methoxy)propyl)silane (CAS 220520-33-2)
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- Methyl 3,4,5-triethoxy-2-nitrobenzoate (CAS 1142198-09-1)
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Recommended Standards
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