3-Allyl-1,1,1,5,5,5-hexamethyl-3-((trimethylsilyl)oxy)trisiloxane CAS 7087-21-0

Purity 97%+In StockPharmaceutical Standards
CAS No.7087-21-0
Molecular FormulaC12H32O3Si4
Molecular Weight336.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Allyl-1,1,1,5,5,5-hexamethyl-3-((trimethylsilyl)oxy)trisiloxane CAS 7087-21-0 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.

3-Allyl-1,1,1,5,5,5-hexamethyl-3-((trimethylsilyl)oxy)trisiloxane (CAS 7087-21-0) is a high-purity analytical reference standard with the molecular formula C12H32O3Si4 and a molecular weight of 336.72 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 3-Allyl-1,1,1,5,5,5-hexamethyl-3-((trimethylsilyl)oxy)trisiloxane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 336.72 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 3-Allyl-1,1,1,5,5,5-hexamethyl-3-((trimethylsilyl)oxy)trisiloxane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC12H32O3Si4
Molecular Weight336.72 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-3.0
CAS Registry Year (est.)1959

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