Description

3-(3-Isocyanatopropyl)Heptamethyltrisiloxane, 95% is a specialized organosilicon compound featuring a reactive isocyanate group attached to a flexible siloxane backbone. This unique hybrid structure is engineered to serve as a key coupling agent or reactive intermediate, bridging organic polymers with inorganic surfaces. It is primarily sought by R&D and production teams in the advanced materials sector for developing high-performance silicone-based polymers, adhesives, and surface coatings. The product is supplied at a purity of 95% to meet the demanding requirements of industrial synthesis.

Application

• Silicone Modification: As a reactive monomer for synthesizing novel silicone polymers, elastomers, and resins with tailored properties.
• Adhesive & Sealant Formulation: To enhance adhesion to difficult substrates (e.g., glass, metals, plastics) in high-performance sealants and adhesives.
• Surface Coating & Treatment: As a coupling agent in coatings to improve surface wetting, durability, and chemical resistance.
• Hybrid Material Synthesis: For creating organic-inorganic hybrid (OIH) materials with applications in optics, electronics, and protective films.
• Crosslinking Agent: Utilized in crosslinking reactions to modify the mechanical and thermal properties of various polymer systems.
• Research & Development: Serving as a valuable building block in academic and industrial R&D for exploring new material science applications.

Basic Information

Product Name	3-(3-Isocyanatopropyl)Heptamethyltrisiloxane, 95%
CAS No.	165454-24-0
Molecular Formula	C13H31NO4Si3
Molecular Weight	349.65 g/mol
Synonyms	Heptamethyltrisiloxanylpropyl isocyanate; 3-Isocyanatopropylheptamethyltrisiloxane; Isocyanatopropylheptamethyltrisiloxane; 1,1,1,3,5,5,5-Heptamethyl-3-(3-isocyanatopropyl)trisiloxane; Trisiloxane, 1,1,1,3,5,5,5-heptamethyl-3-[3-(isocyanato)propyl]-; (3-Isocyanatopropyl)heptamethyltrisiloxane; Silane, isocyanatopropylheptamethyltrisiloxy-
EINECS	Contact for details

Quality Control

Our production of 3-(3-Isocyanatopropyl)Heptamethyltrisiloxane, 95% adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including assay and impurity profiling, to ensure it meets the declared specifications and is suitable for its intended synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and other critical parameters is provided with each shipment to guarantee traceability and batch-to-batch consistency for our customers.

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 compound is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Isocyanate-containing materials should be stored separately from moisture, acids, bases, and alcohols.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 95.0%
Isocyanate Content (NCO%)	Contact for details
Density (at 20°C)	~0.98 g/mL
Refractive Index (n20D)	~1.405

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