(3-((Triisopropylsilyl)ethynyl)-4-((trimethylsilyl)ethynyl)-hexa-3-en-1,5-diyne-1,6-diyl)bis(triisopropylsilane) CAS 142761-77-1

Purity 97%+In StockPharmaceutical Standards
CAS No.142761-77-1
Molecular FormulaC40H72Si4
Molecular Weight665.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3-((Triisopropylsilyl)ethynyl)-4-((trimethylsilyl)ethynyl)-hexa-3-en-1,5-diyne-1,6-diyl)bis(triisopropylsilane) CAS 142761-77-1 chemical structure

Description

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.

Physical & Chemical Properties

Molecular FormulaC40H72Si4
Molecular Weight665.34 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997

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