Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated CAS 104780-66-7

Purity 97%+In StockPharmaceutical Standards
CAS No.104780-66-7
Molecular FormulaC12H32O4Si3
Molecular Weight324.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated CAS 104780-66-7 chemical structure

Description

The occurrence of Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated (CAS 104780-66-7) is a high-purity analytical reference standard with the molecular formula C12H32O4Si3 and a molecular weight of 324.64 g/mol.

The molecular framework of Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated (C12H32O4Si3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. 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.

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 FormulaC12H32O4Si3
Molecular Weight324.64 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.)1986

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