Description

3-Aminopropylsilanetriol is a key organosilicon compound featuring both reactive amino and silanol functional groups. This unique bifunctional structure makes it an essential coupling agent and surface modifier, enabling strong adhesion between inorganic materials and organic polymers. It is critical for industries requiring enhanced material performance, durability, and interfacial bonding. The product is supplied under the identifier CAS NO 58160-99-9.

Application

• As a powerful silane coupling agent in fiberglass-reinforced plastics and mineral-filled composites.
• Surface pretreatment and primer for improving the adhesion of paints, coatings, and adhesives to glass, metal, and concrete substrates.
• Key intermediate in the synthesis of specialized silicone polymers, resins, and functionalized silica materials.
• Surface modification agent for nanoparticles (e.g., silica, alumina) to enhance dispersion and compatibility in polymer matrices.
• Component in formulations for moisture-curable sealants and RTV (Room Temperature Vulcanizing) silicones.
• Used in chromatography as a stationary phase modifier for silica-based columns.
• Potential applications in biomedical engineering for biomaterial surface functionalization.

Basic Information

Product Name	3-Aminopropylsilanetriol
CAS No.	58160-99-9
Molecular Formula	C3H11NO3Si
Molecular Weight	137.21 g/mol
Synonyms	(3-Aminopropyl)trihydroxysilane; 3-Aminopropyltrihydroxysilane; Aminopropyltrihydroxysilane; Silane, (3-aminopropyl)trihydroxy-; γ-Aminopropyltrihydroxysilane; APTS triol; 3-APTRIOL; 3-Trihydroxysilylpropylamine
EINECS	Contact for details

Quality Control

Our 3-Aminopropylsilanetriol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee it meets your specific application requirements.

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). Minimize exposure to air and moisture during handling to prevent degradation and maintain efficacy.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or viscous oil
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Refractive Index (n20D)	1.420 - 1.450
Density (g/mL, 20°C)	1.10 - 1.30

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