Description

4,5-Dihydro-2-[[3-(Triethoxysilyl)Propyl]Thio]-1H-Imidazole Monohydrochloride is a specialized organosilane coupling agent that combines an imidazoline ring with a hydrolyzable triethoxysilyl group. This unique structure is critical for creating strong, durable covalent bonds between inorganic substrates and organic polymers. It is an essential material for formulators and manufacturers seeking to enhance adhesion, mechanical properties, and long-term stability in composite systems. Key industries that rely on this advanced coupling agent include high-performance coatings, advanced composites, and specialty adhesives.

Application

• Silane Coupling Agent for Composites: Enhances the interfacial adhesion between glass, mineral, or metal fillers and polymer matrices such as epoxy, polyurethane, and nylon, improving mechanical strength and moisture resistance.
• Surface Primers and Adhesion Promoters: Used in primers for metals, glass, and plastics to dramatically improve the adhesion and durability of subsequent paint, coating, or adhesive layers.
• Filler Treatment in Rubber and Elastomers: Modifies the surface of silica and other fillers in tire tread compounds and industrial rubber goods to reduce viscosity, improve dispersion, and enhance reinforcement.
• Corrosion-Inhibiting Coatings: Incorporated into coating formulations for metals (e.g., steel, aluminum) where it acts as both an adhesion promoter and a corrosion inhibitor due to the imidazoline functionality.
• Fiber Sizing for Reinforced Plastics: Applied as a sizing or finish on glass, carbon, or aramid fibers to optimize the fiber-matrix interface in fiber-reinforced polymer (FRP) composites.
• Mineral and Pigment Modification: Treats mineral fillers (e.g., clay, talc, calcium carbonate) and pigments to improve their compatibility and performance in plastic masterbatches and compound formulations.

Basic Information

Product Name	4,5-Dihydro-2-[[3-(Triethoxysilyl)Propyl]Thio]-1H-Imidazole Monohydrochloride
CAS No.	90210-36-9
Molecular Formula	C13H27N2O3SSi · HCl
Molecular Weight	353.0 g/mol (approx.)
Synonyms	2-[(3-Triethoxysilyl)propylthio]-4,5-dihydro-1H-imidazole hydrochloride; 3-(1H-Imidazol-1-yl)propyltriethoxysilane hydrochloride (related); Sila-Ace S 310; Silane coupling agent S-310; N-[3-(Triethoxysilyl)propyl]-4,5-dihydro-1H-imidazole-2-thiol hydrochloride; 1H-Imidazole-2-thiol, 4,5-dihydro-, 3-(triethoxysilyl)propyl deriv., hydrochloride; Z-6132 (Potential trade name)
EINECS	Contact for details

Quality Control

Our production of 4,5-Dihydro-2-[[3-(Triethoxysilyl)Propyl]Thio]-1H-Imidazole Monohydrochloride adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure consistency and performance reliability. Certificates of Analysis (COA) detailing all critical specifications are provided with each shipment and 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder or paste
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Chloride Content (Titration)	9.5 - 11.0%

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