2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,20,20,22,22-Docosamethyl-1,3,5,7,9,11,13,15,17,19,21-undecaoxa-2,4,6,8,10,12,14,16,18,20,22-undecasilacyclodocosane CAS 18766-38-6

Purity 97%+In StockPharmaceutical Standards
CAS No.18766-38-6
Molecular FormulaC22H66O11Si11
Molecular Weight815.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,20,20,22,22-Docosamethyl-1,3,5,7,9,11,13,15,17,19,21-undecaoxa-2,4,6,8,10,12,14,16,18,20,22-undecasilacyclodocosane CAS 18766-38-6 chemical structure

Description

Based on its molecular formula C22H66O11Si11, 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,20,20,22,22-Docosamethyl-1,3,5,7,9,11,13,15,17,19,21-undecaoxa-2,4,6,8,10,12,14,16,18,20,22-undecasilacyclodocosane contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 815.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

CATO supplies 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,20,20,22,22-Docosamethyl-1,3,5,7,9,11,13,15,17,19,21-undecaoxa-2,4,6,8,10,12,14,16,18,20,22-undecasilacyclodocosane (CAS 18766-38-6), a certified reference material (molecular formula C22H66O11Si11, MW 815.69 g/mol) for analytical method development and quality control.

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.

As a certified reference material (CRM), 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,20,20,22,22-Docosamethyl-1,3,5,7,9,11,13,15,17,19,21-undecaoxa-2,4,6,8,10,12,14,16,18,20,22-undecasilacyclodocosane 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 FormulaC22H66O11Si11
Molecular Weight815.69 g/mol
Purity97%+
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)-10.0
CAS Registry Year (est.)1962

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