Octamethylcyclotetrasiloxane CAS 556-67-2

Purity >95%In StockPharmaceutical Standards
CAS No.556-67-2
Molecular FormulaC8H24O4Si4
Molecular Weight296.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Octamethylcyclotetrasiloxane CAS 556-67-2 chemical structure

Description

CATO supplies Octamethylcyclotetrasiloxane (CAS 556-67-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H24O4Si4. Molecular weight: 296.62 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC8H24O4Si4
Molecular Weight296.62 g/mol
Purity>95%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-3.0
CAS Registry Year (est.)1957

Recommended Standards

Why CATO?