Description

1,3-Bis(3-Cyanopropyl)Tetramethyldisiloxane is a versatile organosilicon compound featuring a central disiloxane linkage flanked by cyanopropyl functional groups. This unique bifunctional structure makes it a valuable intermediate for synthesizing advanced silicone polymers and modifying material surfaces. It is particularly sought after by R&D chemists and production engineers in the specialty chemical and advanced materials sectors. Its properties enable the creation of polymers with tailored characteristics for demanding applications.

Application

• Silicone Polymer Synthesis: A key monomer or chain extender for producing specialty polycyanopropylmethylsiloxanes and silicone copolymers.
• Surface Modification Agent: Used to impart specific surface properties, such as hydrophobicity or chemical resistance, to inorganic fillers or substrates.
• Adhesive & Sealant Formulations: Serves as a reactive intermediate to enhance the adhesion, flexibility, or thermal stability of silicone-based adhesives and sealants.
• Lubricant & Grease Additive: Incorporated into high-performance lubricants to improve viscosity index and stability under extreme conditions.
• Pharmaceutical & Cosmetic Intermediates: Used in the synthesis of specialized silicone derivatives for controlled-release systems or personal care products.
• Electronics & Encapsulation: Acts as a precursor for silicones used in potting compounds, conformal coatings, and other electronic protection materials.

Basic Information

Product Name	1,3-Bis(3-Cyanopropyl)Tetramethyldisiloxane
CAS No.	18027-80-0
Molecular Formula	C12H24N2OSi2
Molecular Weight	268.51 g/mol
Synonyms	1,3-Bis(3-cyanopropyl)-1,1,3,3-tetramethyldisiloxane; Tetramethyl-1,3-bis(3-cyanopropyl)disiloxane; Bis(3-cyanopropyl)tetramethyldisiloxane; 1,1,3,3-Tetramethyl-1,3-bis(3-cyanopropyl)disiloxane; Cyanopropylmethylsiloxane dimer; Disiloxane, 1,3-bis(3-cyanopropyl)-1,1,3,3-tetramethyl-; DC C3CN
EINECS	Contact for details

Quality Control

Our 1,3-Bis(3-Cyanopropyl)Tetramethyldisiloxane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The product is moisture-sensitive; ensure containers are kept tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.440 - 1.445
Density (20°C)	0.95 - 0.98 g/mL

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