Description

N,N'-Bis(3-Triethoxysilylpropyl)Thiourea is a bifunctional organosilane coupling agent that integrates a thiourea group with triethoxysilyl functionalities. This unique structure is critical for enhancing the adhesion and compatibility between inorganic materials and organic polymers. It is primarily needed by manufacturers in the rubber, sealant, adhesive, and advanced composite materials industries seeking to improve mechanical properties and durability.

Application

• As a silane coupling agent in silica-filled rubber compounds (e.g., tires, industrial belts) to improve reinforcement and reduce rolling resistance.
• Surface modification of mineral fillers (e.g., silica, clay) to enhance dispersion and interfacial bonding in polymer matrices.
• Adhesion promoter in sealants and adhesives, particularly for glass, metal, and mineral substrates.
• Key intermediate in the synthesis of specialty silane-modified polymers and resins for high-performance coatings.
• Improving the water resistance and mechanical strength of fiber-reinforced composites.
• Potential use as a corrosion inhibitor or surface pretreatment agent for metals.

Basic Information

Product Name	N,N'-Bis(3-Triethoxysilylpropyl)Thiourea
CAS No.	69952-89-2
Molecular Formula	C20H48N2O6SSi2
Molecular Weight	509.9 g/mol
Synonyms	Bis(3-triethoxysilylpropyl)thiourea; 1,3-Bis(3-triethoxysilylpropyl)thiourea; Thiourea, N,N'-bis[3-(triethoxysilyl)propyl]-; Silane A-1160 (Trade Name Equivalent); 3-(Triethoxysilyl)propyl Thiourea Derivative; Organosilane Coupling Agent with Thiourea Group; N-[3-(Triethoxysilyl)propyl]-N'-[3-(triethoxysilyl)propyl]thiourea
EINECS	Contact for details

Quality Control

Our production of N,N'-Bis(3-Triethoxysilylpropyl)Thiourea adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, identity, and impurity profiles 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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or HPLC)	≥ 95.0%
Refractive Index (n20D)	1.440 - 1.450
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.