Trimethyl((4-((4-(phenylethynyl)phenyl)-ethynyl)phenyl)ethynyl)silane CAS 518342-75-1
| CAS No. | 518342-75-1 |
| Molecular Formula | C27H22Si |
| Molecular Weight | 374.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Trimethyl((4-((4-(phenylethynyl)phenyl)-ethynyl)phenyl)ethynyl)silane (CAS 518342-75-1), a certified reference material (molecular formula C27H22Si, MW 374.55 g/mol) for analytical method development and quality control.
Owing to a polycyclic aromatic system, Trimethyl((4-((4-(phenylethynyl)phenyl)-ethynyl)phenyl)ethynyl)silane is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 374.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C27H22Si |
| Molecular Weight | 374.55 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
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Recommended Standards
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- (2R)-2-amino-2-(1-(tert-butoxycarbonyl)-3-methylpiperidin-4-yl)acetic acid (CAS 2351523-89-0)
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