Trimethyl(o-tolylethynyl)silane CAS 3989-15-9
| CAS No. | 3989-15-9 |
| Molecular Formula | C12H16Si |
| Molecular Weight | 188.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Trimethyl(o-tolylethynyl)silane.
CATO supplies Trimethyl(o-tolylethynyl)silane (CAS 3989-15-9), a certified reference material (molecular formula C12H16Si, MW 188.34 g/mol) for analytical method development and quality control.
The molecular framework of Trimethyl(o-tolylethynyl)silane (C12H16Si) is characterized by an aromatic ring system. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H16Si |
| Molecular Weight | 188.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Trimethyl Standards
- Trimethyl(3-phenylprop-1-yn-1-yl)silane (CAS 31683-47-3)
- Trimethyl(m-tolylethynyl)silane (CAS 40230-90-8)
- 2,2,4-Trimethyl-1,2-dihydroquinolin-6-amine (CAS 115784-97-9)
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Recommended Standards
- 4186-14-5 5762AB C12H16Si Trimethyl(p-tolylethynyl)silane (CAS 4186-14-5)
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- tert-Butyl (Trimethylsilyl)acetate (CAS 41108-81-0)
- 78906-15-7 CTK5E6209 Oxirane,2-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]- (CAS 78906-15-7)
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- 3-Piperazin-1-yl-5-(trifluoromethyl)-pyridine-2-carboxylic acid (CAS 1993322-16-9)
- Semaglutide impurity 29 (CAS 1188328-22-4)
Why CATO?
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