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3-Aminopropylmethyldiethoxy silane CAS 3179-76-8


Chemical Name:3-Aminopropyl methyldiethoxysilane
Alias:3-(Dimethoxymethylsilyl) propylamine
Product Category:CAS 3179-76-8 Amino Silane | Silanes
Structural Formula:3-Aminopropylmethyldiethoxysilane
CAS NO.:3179-76-8
Molecular formula:C8h21no2si
Molecular Weight:191.34


Aminopropylmethyldimethoxysilane (CAS 3179-76-8) is a colorless to slightly yellow aqueous solution with a slight ammonia odor, soluble in alcohols, aliphatic hydrocarbons or aromatic hydrocarbons. It is an amino-functional silane coupling agent. It is mainly used as an adhesion promoter to improve the adhesion between organic polymers and inorganic substrates.
CAS 3179-76-8 silane contains two different organic functional groups, and has good coupling characteristics with different substances, applied to glass fiber, coatings, adhesives, amino silicone oil, casting and other industries.
Product Name3-Aminopropylmethyldiethoxysilane
Synonyms(3-aminopropyl)diethoxymethyl-silan; 1-Propanamine,3-(diethoxymethylsilyl)-; 3-(diethoxymethylsilyl)-1-propanamin; 3-(diethoxymethylsilyl)-1-Propanamine; 3-(diethoxymethylsilyl)-propylamin; 3-[Diethoxy(methyl)silyl]-1-propanamine;
Melting point<-20°C
Boiling point85-88 °C8 mm Hg(lit.)
density0.916 g/mL at 25 °C(lit.)
refractive indexn20/D 1.426(lit.)
Fp168 °F
Specific Gravity0.916
Water SolubilitySoluble and reacts with water.
SensitiveAir & Moisture Sensitive
Hydrolytic Sensitivity7: reacts slowly with moisture/water
CAS DataBase Reference3179-76-8(CAS DataBase Reference)
NIST Chemistry Reference1-Propanamine, 3-(diethoxymethylsilyl)-(3179-76-8)
EPA Substance Registry System1-Propanamine, 3-(diethoxymethylsilyl)- (3179-76-8)
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3-Aminopropylmethyldiethoxysilane: Guide

3-Aminopropylmethyldiethoxysilane is also known as 3-(Dimethoxymethylsilyl)propylamine. it can be used as an adhesion promoter between inorganic materials (glass, metal, filler, etc.) and organic polymers. It can be used as an adhesion promoter between inorganic materials (glass, metal, fillers, etc.) and organic polymers (thermosets, thermoplastics and elastomers) and as a surface modifier.Application
  • Used as an adhesion promoter and tackifier to increase the adhesion between organic materials and inorganic substrates;
  • It can be used as an important raw material for amino-modified silicone oil and silicone super soft finishing agent. The mechanical and chemical properties of organic compounds are greatly improved after coupling amino groups into the silicone oil skeleton.
  • It can be used as an additive in various sealant systems. It maintains low modulus and improves the mechanical and electrical properties of the final product.
  • It can be used as a surface modifier for inorganic powders and fillers.
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