Bis(2-ethylhexyl)diphenylsilane CAS 18759-53-0
| CAS No. | 18759-53-0 |
| Molecular Formula | C28H44Si |
| Molecular Weight | 408.73 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.
CATO supplies Bis(2-ethylhexyl)diphenylsilane (CAS 18759-53-0), a certified reference material (molecular formula C28H44Si, MW 408.73 g/mol) for analytical method development and quality control.
Based on its molecular formula C28H44Si, Bis(2-ethylhexyl)diphenylsilane contains a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 408.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Bis(2-ethylhexyl)diphenylsilane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C28H44Si |
| Molecular Weight | 408.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Bis Standards
- 2-Ethylhexyl epoxystearate (CAS 141-38-8)
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- Ethylhexyl Methoxycrylene (CAS 947753-66-4)
- 4,8-Bis(2-ethylhexyl)benzo[1,2-b:4,5-b']dithiophene (CAS 1234306-29-6)
- 4,4-Bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene (CAS 365547-20-2)
Recommended Standards
- Di(octan-2-yl)diphenylsilane (CAS 18759-52-9)
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- Semaglutide impurity 56 (CAS CATO-C4X-222656)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com