Description

1,3-Diphenyl-2-[3-(Triethoxysilyl)Propyl]Isothiourea, Monohydrochloride is a specialized organosilane coupling agent that combines the reactivity of an isothiourea group with the hydrolyzable triethoxysilyl functionality. This compound is engineered to act as a powerful adhesion promoter and surface modifier, creating robust chemical bridges between inorganic substrates and organic polymers. It is essential for manufacturers in the advanced composites, specialty adhesives, and high-performance coatings industries seeking to enhance material durability and interfacial bonding strength.

Application

• As a silane coupling agent for glass, metal, and mineral-filled polymer composites to improve mechanical properties and moisture resistance.
• As a surface primer or adhesion promoter in high-performance epoxy, polyurethane, and acrylic adhesive formulations.
• For the surface modification of silica, glass fibers, and other inorganic fillers to enhance compatibility and dispersion in rubber and plastic matrices.
• In the development of corrosion-resistant and waterproof coatings for automotive, aerospace, and marine applications.
• As a key intermediate in the synthesis of advanced functionalized materials for research and specialty chemical production.
• For immobilizing catalysts or bioactive molecules onto solid supports in heterogeneous catalysis and biotechnology.

Basic Information

Product Name	1,3-Diphenyl-2-[3-(Triethoxysilyl)Propyl]Isothiourea, Monohydrochloride
CAS No.	90210-35-8
Molecular Formula	C22H33ClN2O3SSi
Molecular Weight	477.10 g/mol
Synonyms	3-(1,3-Diphenyl-2-thioureido)propyltriethoxysilane hydrochloride; N,N'-Diphenyl-N''-[3-(triethoxysilyl)propyl]isothiourea hydrochloride; [3-(1,3-Diphenyl-2-thioureido)propyl]triethoxysilane hydrochloride; S-[3-(Triethoxysilyl)propyl] N,N'-diphenylisothiourea hydrochloride; Isothiourea silane coupling agent, hydrochloride form; (3-Isothioureidopropyl)triethoxysilane, N,N'-diphenyl-, hydrochloride; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our production of 1,3-Diphenyl-2-[3-(Triethoxysilyl)Propyl]Isothiourea, Monohydrochloride adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing key specifications are available upon request, providing full traceability and supporting your quality assurance processes.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%

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