Description

(1,1,3,3-Tetramethyl-1,3-Disiloxanediyl)Dimethanol is a bifunctional organosilicon compound featuring two hydroxymethyl groups linked by a tetramethyldisiloxane bridge. This unique structure makes it a valuable hydrophilic modifier and crosslinking agent in silicone chemistry. It is primarily utilized in the synthesis of specialty silicone polymers, resins, and elastomers where controlled hydrophilicity and reactivity are required. Key industries that rely on this chemical include advanced materials, personal care, and coatings.

Application

• Silicone Polymer Modification: Used as a hydrophilic monomer to introduce polar hydroxyl groups into polysiloxane backbones, improving compatibility with polar substrates.
• Crosslinking Agent for Silicone Resins: Serves as a reactive intermediate in the production of crosslinked silicone networks for release coatings, encapsulants, and adhesives.
• Personal Care Ingredients: Employed in the synthesis of silicone polyethers and other derivatives used as emulsifiers, surfactants, and conditioning agents in cosmetics and haircare products.
• Surface Treatment & Coatings: Acts as a precursor for creating surface-modifying additives that enhance wetting, adhesion, and durability of coatings on various substrates.
• Pharmaceutical Intermediates: Utilized in the controlled synthesis of organosilicon compounds with potential applications in drug delivery systems.
• Specialty Elastomers: Incorporated into the formulation of high-performance silicone rubbers to tailor mechanical properties and chemical resistance.

Basic Information

Product Name	(1,1,3,3-Tetramethyl-1,3-Disiloxanediyl)Dimethanol
CAS No.	5833-59-0
Molecular Formula	C6H18O3Si2
Molecular Weight	194.38 g/mol
Synonyms	1,3-Bis(hydroxymethyl)-1,1,3,3-tetramethyldisiloxane; α,ω-Dihydroxytetramethyldisiloxane; Tetramethyl-1,3-disiloxanediyl)dimethanol; Bis(hydroxymethyl)tetramethyldisiloxane; 1,1,3,3-Tetramethyl-1,3-bis(hydroxymethyl)disiloxane; Hydroxymethyl-terminated tetramethyldisiloxane; TMDS diol
EINECS	227-440-9

Quality Control

Our (1,1,3,3-Tetramethyl-1,3-Disiloxanediyl)Dimethanol is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, water content, and specific gravity. Our quality commitment ensures the material meets the precise requirements for advanced synthesis and formulation 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). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.92 - 0.96
Refractive Index (n20D)	1.410 - 1.415

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