Description

1,3-Dibutyl-2-[3-(Triethoxysilyl)Propyl]Isothiouronium Chloride is a specialized organosilane coupling agent containing a reactive isothiouronium functional group. This compound is engineered to provide superior adhesion promotion and surface modification in composite materials. It is primarily utilized by manufacturers in the rubber, polymer, and advanced materials industries seeking to enhance the bonding between inorganic fillers and organic polymer matrices.

Application

• As a silane coupling agent for improving the adhesion between mineral fillers (e.g., silica, clay) and various elastomers in tire and rubber goods manufacturing.
• Surface modification of glass fibers and other inorganic reinforcements to enhance compatibility and mechanical properties in fiber-reinforced plastics (FRP) and composites.
• Adhesion promoter in sealant, adhesive, and coating formulations where strong bonding to mineral or metallic substrates is required.
• Intermediate in the synthesis of more complex functional silanes for specialized surface chemistry applications.
• Potential use in the preparation of modified silica for chromatography or as a catalyst support.

Basic Information

Product Name	1,3-Dibutyl-2-[3-(Triethoxysilyl)Propyl]Isothiouronium Chloride
CAS No.	90210-34-7
Molecular Formula	C20H45ClN2O3SSi
Molecular Weight	465.19 g/mol
Synonyms	N,N'-Dibutyl-N''-[3-(triethoxysilyl)propyl]isothiouronium Chloride; 3-(1,3-Dibutyl-2-thioureido)propyltriethoxysilane Chloride; S-[3-(Triethoxysilyl)propyl]-N,N'-dibutylisothiouronium Chloride; Isothiouronium Silane Coupling Agent; DBTSIC; (3-Chloro-1,3-dibutyl-2-thioureidopropyl)triethoxysilane; 1,3-Dibutyl-2-(3-triethoxysilylpropyl)isothiouronium Chloride
EINECS	Contact for details

Quality Control

Our production of 1,3-Dibutyl-2-[3-(Triethoxysilyl)Propyl]Isothiouronium Chloride adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including assay by titration or HPLC and identity confirmation by FT-IR or NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC/Titration)	≥ 95.0%
Chloride Content	Conforms
Refractive Index (n20D)	1.450 - 1.470
Density (g/mL, 20°C)	1.00 - 1.05

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