Hexamethoxydisiloxane CAS 4371-91-9

Purity 97%+In StockPharmaceutical Standards
CAS No.4371-91-9
Molecular FormulaC6H18O7Si2
Molecular Weight258.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Hexamethoxydisiloxane CAS 4371-91-9 chemical structure

Description

Hexamethoxydisiloxane (CAS 4371-91-9) is a high-purity analytical reference standard with the molecular formula C6H18O7Si2 and a molecular weight of 258.37 g/mol.

Structurally, Hexamethoxydisiloxane (C6H18O7Si2) contains a carbohydrate-derived structure. The molecule exhibits a degree of unsaturation (DBE) of -2.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 258.37 g/mol, it falls into the medium-molecular-weight range.

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.

As a certified reference material (CRM), Hexamethoxydisiloxane 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 FormulaC6H18O7Si2
Molecular Weight258.37 g/mol
Purity97%+
StorageStore in a cool place (≤25°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.)1958

Recommended Standards

Why CATO?