Description

Bis(Trimethylsiloxy)Methylsilylpropoxysulfolane is a high-purity organosilicon compound with a sulfolane moiety, designed for advanced material science applications. Its unique hybrid structure combines the thermal stability and surface-modifying properties of siloxanes with the exceptional solvent power and chemical resistance of sulfolane. This makes it a critical functional additive and intermediate for demanding industrial processes. Key industries that utilize this specialty chemical include electronics, high-performance polymers, and advanced coatings.

Application

• Electronics Manufacturing: Used as a high-boiling, polar aprotic solvent and additive in photoresist strippers, cleaning formulations, and for the purification of electronic-grade chemicals.
• Polymer & Resin Modification: Acts as a reactive intermediate or plasticizer to enhance the thermal stability, flexibility, and dielectric properties of specialty silicones, polyimides, and other high-temperature polymers.
• Surface Treatment & Coatings: Employed as a surface modifier or coupling agent to improve adhesion, moisture resistance, and release properties in advanced coating systems.
• Gas Separation & Purification: Investigated for use as a functional component in membranes or absorbents for the selective removal of acidic gases like CO₂ and H₂S due to the sulfolane group's affinity.
• Chemical Synthesis: Serves as a specialty solvent or protecting group reagent for sensitive reactions requiring high polarity, thermal stability, and low nucleophilicity.
• Lubricants & Greases: Incorporated as a performance additive to improve the thermal-oxidative stability and load-bearing characteristics of synthetic lubricants and high-temperature greases.

Basic Information

Product Name	Bis(Trimethylsiloxy)Methylsilylpropoxysulfolane
CAS No.	502925-36-2
Molecular Formula	C₁₄H₃₄O₅SSi₃
Molecular Weight	410.73 g/mol
Synonyms	3-[(Bis(trimethylsiloxy)methylsilyl]propoxysulfolane; 1,1-Dioxotetrahydrothiophene-3-yloxypropylbis(trimethylsiloxy)methylsilane; Sulfolane, 3-[[[bis[(trimethylsilyl)oxy]methylsilyl]propoxy]-; Propoxysulfolane silane derivative; Sulfolane-functional siloxane; Organosilicon sulfolane ether
EINECS	Contact for details

Quality Control

Our production of Bis(Trimethylsiloxy)Methylsilylpropoxysulfolane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity, assay, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality system is designed to meet the rigorous demands of electronics and pharmaceutical intermediate applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Ensure containers are kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.4400 - 1.4500
Density (g/mL, 20°C)	1.00 - 1.10

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