Description

2,2,3,3,5,5,6,6-Octamethyl-4-Oxa-2,3,5,6-Tetrasilaheptane is a specialized organosilicon compound, also known as 1,3-Bis(trimethylsilyloxy)-1,1,3,3-tetramethyldisiloxane, valued for its role as a versatile silylating agent and reactive intermediate. Its core value lies in its ability to introduce protective trimethylsilyl groups, enhancing the stability and processability of target molecules in sensitive chemical syntheses. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and advanced materials sectors, where precise molecular modification is critical.

Application

• Silylating Agent: Used to protect reactive hydroxyl (-OH) groups in the synthesis of complex organic molecules, including pharmaceuticals and natural products.
• Pharmaceutical Intermediate: Serves as a key building block in the production of active pharmaceutical ingredients (APIs) requiring silicon-based functionalization.
• Surface Modification: Employed to modify the surface properties of silica, glass, or other inorganic materials to impart hydrophobicity or improve compatibility with organic polymers.
• Silicone Chemistry: Acts as a monomer or chain extender in the synthesis of specific polysiloxanes (silicones) with tailored properties.
• Analytical Chemistry: Utilized in derivatization techniques for gas chromatography (GC) to improve the volatility and detection of polar compounds.
• Adhesive & Sealant Formulations: Functions as a cross-linking agent or adhesion promoter in high-performance silicone-based adhesives and sealants.

Basic Information

Product Name	2,2,3,3,5,5,6,6-Octamethyl-4-Oxa-2,3,5,6-Tetrasilaheptane
CAS No.	1560-31-2
Molecular Formula	C10H30O3Si4
Molecular Weight	310.72 g/mol
Synonyms	1,3-Bis(trimethylsilyloxy)-1,1,3,3-tetramethyldisiloxane; Bis(trimethylsiloxy)tetramethyldisiloxane; 1,1,3,3-Tetramethyl-1,3-bis(trimethylsiloxy)disiloxane; Hexamethyltrisiloxane-1,5-diol, 1,1,3,3-tetramethyl-; HMTS; OMS-824; Contact for additional trade names.
EINECS	216-336-8

Quality Control

Our production of 2,2,3,3,5,5,6,6-Octamethyl-4-Oxa-2,3,5,6-Tetrasilaheptane adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality system is designed to meet the demands of cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere such as nitrogen to prevent degradation. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.390 - 1.395
Density (20°C)	0.85 - 0.90 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.