Description

2-Methyl-3-(Triethoxysilyl)Propyl Thiocyanate is a bifunctional organosilane coupling agent that combines a reactive thiocyanate (-SCN) group with a hydrolyzable triethoxysilyl moiety. This unique structure makes it a critical intermediate for modifying material surfaces and enhancing adhesion between organic polymers and inorganic substrates. It is primarily utilized in the rubber, sealant, and advanced composite materials industries where durable chemical bonding and improved mechanical properties are essential.

Application

• As a silane coupling agent in silica-filled rubber compounds (e.g., tires, industrial belts) to improve filler dispersion and reduce rolling resistance.
• A key intermediate for the synthesis of specialty adhesion promoters and surface modifiers in sealants, adhesives, and coatings.
• Surface treatment of mineral fillers (e.g., glass fibers, silica) to enhance compatibility and bonding with polymer matrices in composite materials.
• Used in the formulation of release coatings and primers to provide specific surface functionalities.
• Development of corrosion-resistant coatings for metals by promoting strong interfacial adhesion.
• Research and development of novel hybrid organic-inorganic materials (ORMOSILs) for specialized applications.

Basic Information

Product Name	2-Methyl-3-(Triethoxysilyl)Propyl Thiocyanate
CAS No.	94087-38-4
Molecular Formula	C11H23NO3SSi
Molecular Weight	277.46 g/mol
Synonyms	3-(Triethoxysilyl)-2-methylpropyl thiocyanate; 2-Methyl-3-triethoxysilylpropyl thiocyanate; Thiocyanatopropylmethyltriethoxysilane; (2-Methyl-3-thiocyanatopropyl)triethoxysilane; 3-Thiocyanatopropylmethyltriethoxysilane; Silane A-1891 (analogous); MPCES (abbrev.); Triethoxy(2-methyl-3-thiocyanatopropyl)silane
EINECS	Contact for details

Quality Control

Our production of 2-Methyl-3-(Triethoxysilyl)Propyl Thiocyanate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay by GC or HPLC, identity confirmation (IR), and control of key impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your material specifications.

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	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.440 - 1.450
Density (g/mL, 25°C)	1.00 - 1.05

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