| CAS No. | 142761-77-1 |
| Molecular Formula | C40H72Si4 |
| Molecular Weight | 665.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 665.34 g/mol gives (3-((Triisopropylsilyl)ethynyl)-4-((trimethylsilyl)ethynyl)-hexa-3-en-1,5-diyne-1,6-diyl)bis(triisopropylsilane) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (3-((Triisopropylsilyl)ethynyl)-4-((trimethylsilyl)ethynyl)-hexa-3-en-1,5-diyne-1,6-diyl)bis(triisopropylsilane) (CAS 142761-77-1), a certified reference material (molecular formula C40H72Si4, MW 665.34 g/mol) for analytical method development and quality control.
Structurally, (3-((Triisopropylsilyl)ethynyl)-4-((trimethylsilyl)ethynyl)-hexa-3-en-1,5-diyne-1,6-diyl)bis(triisopropylsilane) (C40H72Si4) contains an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 665.34 g/mol, it falls into the high-molecular-weight range. 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).
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.
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.
| Molecular Formula | C40H72Si4 |
| Molecular Weight | 665.34 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1997 |