Pentamethyldisiloxane CAS 1438-82-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1438-82-0
Molecular FormulaC5H16OSi2
Molecular Weight148.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pentamethyldisiloxane CAS 1438-82-0 chemical structure

Description

The occurrence of Pentamethyldisiloxane is closely related to a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Pentamethyldisiloxane (CAS 1438-82-0), a certified reference material (molecular formula C5H16OSi2, MW 148.35 g/mol) for analytical method development and quality control.

The molecular framework of Pentamethyldisiloxane (C5H16OSi2) is characterized by 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.

As a certified reference material (CRM), Pentamethyldisiloxane 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 FormulaC5H16OSi2
Molecular Weight148.35 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-2.0
CAS Registry Year (est.)1957

Recommended Standards

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