Hexadecamethylcyclooctasiloxane CAS 556-68-3

Purity >95%In StockPharmaceutical Standards
CAS No.556-68-3
Molecular FormulaC16H48O8Si8
Molecular Weight593.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Hexadecamethylcyclooctasiloxane CAS 556-68-3 chemical structure

Description

The occurrence of Hexadecamethylcyclooctasiloxane 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.

CATO supplies Hexadecamethylcyclooctasiloxane (CAS 556-68-3), a certified reference material (molecular formula C16H48O8Si8, MW 593.23 g/mol) for analytical method development and quality control.

Hexadecamethylcyclooctasiloxane (C16H48O8Si8) contains a carboxylic acid group, a hydroxyl group, an ether linkage. 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.

CATO manufactures Hexadecamethylcyclooctasiloxane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC16H48O8Si8
Molecular Weight593.23 g/mol
Purity>95%
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-7.0
CAS Registry Year (est.)1957

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