1,1,3,3-Tetramethyldisiloxane-1,3-diol CAS 1118-15-6

Purity >90%In StockPharmaceutical Standards
CAS No.1118-15-6
Molecular FormulaC4H14O3Si2
Molecular Weight166.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1,3,3-Tetramethyldisiloxane-1,3-diol CAS 1118-15-6 chemical structure

Description

1,1,3,3-Tetramethyldisiloxane-1,3-diol (CAS 1118-15-6) is a high-purity analytical reference standard with the molecular formula C4H14O3Si2 and a molecular weight of 166.32 g/mol.

The molecular framework of 1,1,3,3-Tetramethyldisiloxane-1,3-diol (C4H14O3Si2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC4H14O3Si2
Molecular Weight166.32 g/mol
Purity>90%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-2.0
CAS Registry Year (est.)1957

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