Description

Bis(Bromomethyl)Tetramethyldisiloxane is a versatile organosilicon compound featuring reactive bromomethyl groups attached to a disiloxane backbone. This unique structure makes it a valuable bifunctional reagent and intermediate for introducing silicon-containing moieties into more complex molecules. It is particularly sought after by R&D chemists and process engineers in the specialty chemical and advanced materials sectors. Its primary utility lies in cross-linking, polymer modification, and as a precursor for further functionalization.

Application

• Cross-linking Agent: Used in the synthesis and modification of silicones, polymers, and resins to enhance thermal stability, mechanical properties, and chemical resistance.
• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules requiring silicon incorporation.
• Surface Modification: Employed to functionalize silica, glass, or other inorganic surfaces, altering their hydrophobicity, adhesion, or compatibility with organic matrices.
• Precursor for Functional Silanes: Acts as a starting material for the preparation of other organofunctional silanes through nucleophilic substitution of the bromine atoms.
• Adhesive & Sealant Formulations: Incorporated into specialty silicone-based adhesives and sealants to improve curing characteristics and final product performance.
• Research & Development: A crucial reagent in academic and industrial labs for exploring new silicon chemistry, dendrimer synthesis, and novel material development.

Basic Information

Product Name	Bis(Bromomethyl)Tetramethyldisiloxane
CAS No.	2351-13-5
Molecular Formula	C6H16Br2OSi2
Molecular Weight	308.08 g/mol
Synonyms	1,3-Bis(bromomethyl)-1,1,3,3-tetramethyldisiloxane; Tetramethyl-1,3-bis(bromomethyl)disiloxane; α,ω-Dibromotetramethyldisiloxane; Disiloxane, 1,3-bis(bromomethyl)-1,1,3,3-tetramethyl-; Bromomethyl-functional disiloxane
EINECS	Contact for details

Quality Control

Our Bis(Bromomethyl)Tetramethyldisiloxane is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality systems are designed to meet the stringent requirements of research and industrial-scale applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, the container should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.45 g/cm³
Refractive Index (n20D)	~1.465

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