68037-59-2 (7-8% Methylhydrosiloxane) - dimethylsiloxane copolymer, trimethylsiloxy terminated MFCD00240848 CAS 68037-59-2

Purity 97%+In StockPharmaceutical Standards
CAS No.68037-59-2
Molecular FormulaC9H28O3Si4
Molecular Weight296.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

68037-59-2 (7-8% Methylhydrosiloxane) - dimethylsiloxane copolymer, trimethylsiloxy terminated MFCD00240848 CAS 68037-59-2 chemical structure

Description

68037-59-2 (7-8% Methylhydrosiloxane) - dimethylsiloxane copolymer, trimethylsiloxy terminated MFCD00240848 (CAS 68037-59-2) is a high-purity analytical reference standard with the molecular formula C9H28O3Si4 and a molecular weight of 296.66 g/mol.

68037-59-2 (7-8% Methylhydrosiloxane) - dimethylsiloxane copolymer, trimethylsiloxy terminated MFCD00240848 (C9H28O3Si4) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.

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 FormulaC9H28O3Si4
Molecular Weight296.66 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-4.0
CAS Registry Year (est.)1976

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