Dodecamethylpentasiloxane CAS 141-63-9

Purity >90%In StockPharmaceutical Standards
CAS No.141-63-9
Molecular FormulaC12H36O4Si5
Molecular Weight384.84 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Dodecamethylpentasiloxane CAS 141-63-9 chemical structure

Description

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Dodecamethylpentasiloxane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Dodecamethylpentasiloxane (CAS 141-63-9), molecular formula C12H36O4Si5 and molecular weight 384.84 g/mol, is a CATO reference standard with documented purity and traceability.

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 Dodecamethylpentasiloxane 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 FormulaC12H36O4Si5
Molecular Weight384.84 g/mol
Purity>90%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-5.0
CAS Registry Year (est.)1957

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