Tetraoctadecyl silicate CAS 18816-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.18816-28-9
Molecular FormulaC72H148O4Si
Molecular Weight1106.03 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tetraoctadecyl silicate CAS 18816-28-9 chemical structure

Description

The occurrence of Tetraoctadecyl silicate 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.

Tetraoctadecyl silicate (CAS 18816-28-9), molecular formula C72H148O4Si and molecular weight 1106.03 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Tetraoctadecyl silicate (C72H148O4Si) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), Tetraoctadecyl silicate 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 FormulaC72H148O4Si
Molecular Weight1106.03 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1962

Recommended Standards

Why CATO?