Acryloxypropyltrimethoxysilane CAS No. 4369-14-6

Acryloxypropyltrimethoxysilane (CAS No. 4369-14-6) is a silane coupling agent that is used to modify the surface properties of materials. It is a clear, colorless liquid with a low viscosity. Acryloxypropyltrimethoxysilane is a versatile compound that can be used in a variety of applications, including:

  • Adhesion promoters
  • Corrosion inhibitors
  • Water repellents
  • Mold release agents
  • Inks
  • Coatings
  • Composite materials

Acryloxypropyltrimethoxysilane is a safe and effective compound that has been extensively tested for safety. It is not classified as a hazardous material and is not known to be carcinogenic, mutagenic, or teratogenic.

Product number: PR-77
English name: Acryloxypropyltrimethoxysilane
Alias: 3-(Trimethoxysilyl)propyl acrylate,




2-Propenoic acid, 3-(trimethoxysilyl)propyl ester,

3-trimethoxysilylpropyl prop-2-enoate,


3-(trimethoxysilyl)propyl prop-2-enoate,

Acrylic Acid 3-(Trimethoxysilyl)propyl Ester,

3-(Trimethoxysilyl)propyl 2-propenoate,


acrylic acid, 3-(trimethoxysilyl)propyl ester,

trimethoxysilyl propyl acrylate,

3-acryloxy propyltrimethoxysilane,




Molecular Structure: Acryloxypropyltrimethoxysilane CAS No. 4369-14-6
Molecular formula: C9H18O5Si
Molecular weight: 234.3217
CAS : 4369-14-6
EINECS : 419-560-6
InChI: 1S/C9H18O5Si/c1-5-9(10)14-7-6-8-15(11-2,12-3)13-4/h5H,1,6-8H2,2-4H3

Application fields :
1. Mainly used in unsaturated polyester composite materials, which can improve the mechanical properties, electrical properties and light transmission properties of composite materials. In particular, it can greatly improve the wet performance of composite materials;
2. In the cable and wire industry, use this coupling agent to treat clay-filled peroxide-crosslinked EPDM systems, which can improve consumption factors and specific capacitance and reactance;


Packaging and storage :
After opening the package, it should be kept away from the moisture in the air to avoid hydrolysis and gelation. It should be stored in a ventilated and dry place at a temperature of 25°C, and the shelf life is 1 year.
25L packaging, 208L closed steel drum packaging

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