n-Octadecyltrimethoxysilane octadecyltrimethoxysilane octadecyl-trimethoxysilane trimethoxy(octadecyl)silane 3069-42-9 S12325 CAS 3069-42-9
| CAS No. | 3069-42-9 |
| Molecular Formula | C21H46O3Si |
| Molecular Weight | 374.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
n-Octadecyltrimethoxysilane octadecyltrimethoxysilane octadecyl-trimethoxysilane trimethoxy(octadecyl)silane 3069-42-9 S12325 (CAS 3069-42-9), molecular formula C21H46O3Si and molecular weight 374.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H46O3Si, n-Octadecyltrimethoxysilane octadecyltrimethoxysilane octadecyl-trimethoxysilane trimethoxy(octadecyl)silane 3069-42-9 S12325 contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 374.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C21H46O3Si |
| Molecular Weight | 374.67 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1957 |
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Why CATO?
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