(Allyloxy)triphenylsilane CAS 18752-15-3
| CAS No. | 18752-15-3 |
| Molecular Formula | C21H20OSi |
| Molecular Weight | 316.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (Allyloxy)triphenylsilane is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (Allyloxy)triphenylsilane (CAS 18752-15-3), a certified reference material (molecular formula C21H20OSi, MW 316.47 g/mol) for analytical method development and quality control.
The molecular framework of (Allyloxy)triphenylsilane (C21H20OSi) is characterized by a steroid core, a hydroxyl group, an ether linkage. 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.
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 | C21H20OSi |
| Molecular Weight | 316.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Allyloxy Standards
- Butyl 4-(allyloxy)benzoate (CAS 6967-52-8)
- Ethyl 7-(allyloxy)-4-oxo-8-propyl-4H-chromene-2-carboxylate (CAS 248595-13-3)
- 4-(Allyloxy)-2-bromo-5-ethoxybenzohydrazide (CAS 664983-57-7)
- Methyl 3-(allyloxy)-4-iodobenzoate (CAS 501892-70-2)
- 1-(Allyloxy)-6-chloro-2-(4-methoxyphenyl)-1H-benzo[d]imidazole (CAS 400086-69-3)
- 3-(4-(Allyloxy)-2-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 1234692-07-9)
- 3-(4-(Allyloxy)-3-methylphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 956156-96-0)
- N-(4-(allyloxy)-3-bromo-5-methoxybenzyl)propan-2-amine (CAS 940358-55-4)
Recommended Standards
- 4-Triethoxysilyl-1,1-biphenyl (CAS 18056-97-8)
- 1-(Triphenylsilyl)propan-1-one (CAS 2294-99-7)
- 2,2-Dimethyl-1-(6-((trimethylsilyl)ethynyl)-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-1-yl)propan-1-one (CAS 1228666-09-8)
- Tetrahydrogestrinone-d4 (CAS 856893-82-8)
- 2-(1-((2-Iodothiazol-5-yl)methyl)imidazolidin-2-ylidene)acetonitrile (CAS 823816-07-5)
- 4-Aminoisoquinolin-1(2H)-one hydrochloride (CAS 108127-91-9)
- 2,2,2-Trifluoro-N-(3-oxo-1-indanyl)acetamide (CAS 117391-20-5)
- 7α-(Thiomethyl)spironolactone (CAS 38753-77-4)
- 1,3-Dichloro-2-fluoro-5-methylbenzene (CAS 1803789-06-1)
- tert-Butyl ((5-cyanopyrimidin-2-yl)methyl)carbamate (CAS 433939-76-5)
- 2-(4-Bromo-1-methyl-1H-pyrazol-5-yl)-3-fluoro-1-naphthonitrile (CAS 2629318-45-0)
- [2-D-histidine]Deslorelin (CAS CATO-CPTD788647)
- 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid (CAS 63471-83-0)
- Hippocampal Cholinergic Neurostimulating Peptide (CAS 140158-49-2)
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