(2,6-Dimethylphenyl)trimethylsilane CAS 17961-82-9
| CAS No. | 17961-82-9 |
| Molecular Formula | C11H18Si |
| Molecular Weight | 178.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2,6-Dimethylphenyl)trimethylsilane (CAS 17961-82-9), molecular formula C11H18Si and molecular weight 178.35 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2,6-Dimethylphenyl)trimethylsilane (C11H18Si) is characterized by an organic framework. 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.
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 | C11H18Si |
| Molecular Weight | 178.35 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
Related Dimethylphenyl Standards
- (2,3-Dimethylphenyl)trimethylsilane (CAS 17961-79-4)
- (2,4-Dimethylphenyl)trimethylsilane (CAS 17961-80-7)
- (3,5-Dimethylphenyl)trimethylsilane (CAS 17961-83-0)
- (3,4-Dimethylphenyl)trimethylsilane (CAS 17988-43-1)
- 1-(3,4-Dimethylphenyl)butan-1-ol (CAS 1071719-97-5)
- 4-(3,4-Dimethylphenyl)butan-1-ol (CAS 1082435-12-8)
- 1-(2,5-Dimethylphenyl)butan-2-ol (CAS 116762-16-4)
- 1-(3,5-Dimethylphenyl)butan-2-ol (CAS 1183808-26-5)
Recommended Standards
- Diallyl Trisulfide (CAS 2050-87-5)
- 2-(cyclohexen-1-yl)ethynyl-trimethyl-silane (CAS 17988-44-2)
- 302911-89-3 Ethyl 3-(trimethylsilyl)(~2~H_4_)propanoate DTXSID40583726 (CAS 302911-89-3)
- (4-Ethylphenyl)trimethylsilane (CAS 17988-50-0)
- 6-(2,4-Dimethylphenyl)nicotinic acid (CAS 1261945-81-6)
- n-Cyclopropyl-2-[4-oxo-2-(phenylimino)-1,3-thiazolidin-5-yl]acetamide (CAS 871909-80-7)
- cis-4-(3,5-Dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 735270-26-5)
- Alectinib Impurity 45 (CAS CATO-C4X-283645)
- tert-Butyl 4-(1-methoxycyclopropanecarbonyl)piperazine-1-carboxylate (CAS 1788041-47-3)
- 1-(3-Bromo-4-methylphenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde (CAS 693808-08-1)
- 6-Hydroxy-5-methoxypyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (CAS 918537-48-1)
- (4R)-2H-1-Benzopyran-4-amine, 3,4-dihydro-5,8-dimethyl-hydrochloride (1:1) (CAS 2173637-78-8)
- 4-Bromo-2,6-dimethylphenyl carbonochloridate (CAS 203175-69-3)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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