1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate CAS 139722-91-1

Purity 97%+In StockPharmaceutical Standards
CAS No.139722-91-1
Molecular FormulaC8H21O4Si3
Molecular Weight265.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate CAS 139722-91-1 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate.

1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate (CAS 139722-91-1), molecular formula C8H21O4Si3 and molecular weight 265.51 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H21O4Si3, 1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate 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 265.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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), 1,1,3,3,5,5-Hexamethyltrisiloxanyl acetate 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 FormulaC8H21O4Si3
Molecular Weight265.51 g/mol
Purity97%+
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)-1.5
CAS Registry Year (est.)1996

Recommended Standards

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