Description

1,3-Bis(3-Carboxypropyl)Tetramethyldisiloxane is a high-purity, functional organosilicon compound featuring a central disiloxane bridge terminated with carboxylic acid groups. This unique structure makes it a valuable bifunctional building block for synthesizing advanced silicone polymers and hybrid organic-inorganic materials. It is essential for R&D and production in industries requiring tailored surface properties, adhesion promotion, or specific chemical functionality from silicone-based systems.

Application

• Silicone Polymer Modification: Serves as a key monomer or cross-linker for introducing carboxyl functionality into silicone backbones, enabling the creation of acid-functionalized silicones for coatings, adhesives, and sealants.
• Hybrid Material Synthesis: Used as a precursor in sol-gel processes to produce silicone-based hybrid organic-inorganic materials (ORMOSILs) with enhanced mechanical and optical properties.
• Surface Treatment Agent: The carboxylic acid groups allow for bonding to metal oxides or other substrates, making it useful for surface modification to improve wettability, adhesion, or corrosion resistance.
• Pharmaceutical & Cosmetic Intermediates: Employed in the synthesis of specialized silicone derivatives for controlled-release drug delivery systems or as components in high-performance personal care formulations.
• Adhesion Promoter: Functions as a coupling agent in composite materials and filled polymer systems to enhance the interface between organic polymers and inorganic fillers or reinforcements.
• Research & Development: A critical reagent for academic and industrial research focused on developing new functional silicones, dendrimers, and smart materials.

Basic Information

Product Name	1,3-Bis(3-Carboxypropyl)Tetramethyldisiloxane
CAS No.	3353-68-2
Molecular Formula	C14H30O5Si2
Molecular Weight	334.56 g/mol
Synonyms	3,3'-(1,1,3,3-Tetramethyldisiloxane-1,3-diyl)dipropanoic Acid; Carboxypropyl-Terminated Disiloxane; Bis(3-Carboxypropyl) Tetramethyldisiloxane; 1,3-Di(3-carboxypropyl)-1,1,3,3-tetramethyldisiloxane; Tetramethyl-1,3-bis(3-carboxypropyl)disiloxane; Disiloxane, 1,1,3,3-tetramethyl-1,3-bis(3-carboxypropyl)-; DMS-C15; A-Bis-Carboxypropyl Tetramethyldisiloxane
EINECS	222-132-6

Quality Control

Our production of 1,3-Bis(3-Carboxypropyl)Tetramethyldisiloxane adheres to a stringent quality management system. Every batch is analyzed to ensure high chemical purity and consistency, with specifications meeting the demands of advanced material synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). The product is compatible with strong acids and organic solvents but should be kept away from strong bases and oxidizing agents. Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Acid Value	Contact for details
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	Contact for details
Density (20°C)	Contact for details

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