1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane CAS 67875-55-2

Purity 97%+In StockPharmaceutical Standards
CAS No.67875-55-2
Molecular FormulaC12H30OSi2
Molecular Weight246.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane CAS 67875-55-2 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.

1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane (CAS 67875-55-2) is a high-purity analytical reference standard with the molecular formula C12H30OSi2 and a molecular weight of 246.54 g/mol.

Based on its molecular formula C12H30OSi2, 1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane contains a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 246.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane 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 FormulaC12H30OSi2
Molecular Weight246.54 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-2.0
CAS Registry Year (est.)1976

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