Description

2,9,11,13-Tetraazanonadecanethioic Acid, 19-Isocyanato-11-(6-Isocyanatohexyl)-10,12-Dioxo-, S-3-(Trimethoxysilyl)Propyl Ester is a sophisticated, multi-functional organosilane derivative engineered for advanced material science applications. This compound is valued for its unique molecular architecture, which combines reactive isocyanate groups with a hydrolyzable trimethoxysilyl ester, enabling dual covalent bonding to both organic polymers and inorganic substrates. It is primarily sought by R&D and production teams in the specialty polymers, high-performance adhesives, and advanced composite materials sectors seeking to enhance interfacial adhesion and material properties.

Application

• Advanced Composite Coupling Agent: Used as a bifunctional adhesion promoter in fiber-reinforced plastics (FRP) and mineral-filled composites to improve the bond between the matrix and reinforcement.
• Specialty Polyurethane & Polyurea Modifier: Serves as a reactive chain extender or crosslinker in the synthesis of high-performance polyurethane/polyurea elastomers and coatings, imparting enhanced mechanical strength and chemical resistance.
• Surface Primers and Adhesives: Formulated into primers for glass, metals, and ceramics to dramatically improve the durability and water resistance of structural adhesives and sealants.
• Hybrid Organic-Inorganic Material Synthesis: A key precursor in sol-gel chemistry for creating novel hybrid coatings, membranes, and nanoparticles with tailored surface properties.
• Tire and Rubber Industry: Enhances the bonding of rubber compounds to steel or fabric cords, critical for manufacturing high-durability tires and industrial rubber goods.
• Dental and Biomedical Materials: Investigated for use in developing durable, biocompatible composite resins and bone cements where strong, moisture-resistant interfaces are required.

Basic Information

Product Name	2,9,11,13-Tetraazanonadecanethioic Acid, 19-Isocyanato-11-(6-Isocyanatohexyl)-10,12-Dioxo-, S-3-(Trimethoxysilyl)Propyl Ester
CAS No.	85702-90-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	S-[3-(Trimethoxysilyl)propyl] 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate; 3-(Trimethoxysilyl)propyl Isocyanato-Functionalized Thioester; Bifunctional Isocyanato-Silane Coupling Agent; Silane Coupling Agent with Dual Isocyanate Groups; Isocyanatopropyltrimethoxysilane Thioester Derivative; Adhesion Promoter 85702-90-5; Multi-Functional Organosilane 85702-90-5
EINECS	Contact for details

Quality Control

Our production of this advanced silane coupling agent adheres to rigorous quality standards to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including FT-IR, NMR, and HPLC to confirm identity, purity, and functional group integrity. Certificates of Analysis (COA) detailing specific parameters are provided with every shipment. We operate under a quality management system and can support compliance requirements for global markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and polymerization. Recommended storage temperature is 2-8°C for long-term stability. Isolate from moisture, heat, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Isocyanate Content (NCO)	Contact for details
Moisture (Karl Fischer)	≤ 0.1%
Specific Gravity	Contact for details

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