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Quick Details

  • Classification: Chemical Auxiliary Agent
  • CAS No.: 4420-74-0
  • Other Names: 3-Mercaptopropyltrimethoxysilane
  • MF: C6H16O3SSi
  • EINECS No.: 224-588-5
  • Purity: 98%
  • Place of Origin: China (Mainland)
  • Type: Organic Silane Coupling Agent
  • Usage: Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents
  • Brand Name: LANYACHEM
  • Model Number: YAC-S313

Packaging & Delivery

Packaging Details 200kg/drum
Delivery Time Immediately


CAS No. 4420-74-0


Molecular formula: C6H16O3SSi

EINECS No.:  224-588-5

Model No.:  NQ-590/KH-590/A-189



CAS NO.4420-74-0
Molecular Weight:238.4
Boiling Point:93 °C
Density (ρ20 )g/cm31.0450±0.01(25°C)
Refractive Index (n25D):1.4420±0.005
Appearance:Colorless transparent liquid





1. 3-Mercapto propyl trimethoxy silane coupling agent has sulfhydryl-base function groups, and has special efficiency when as antirust of metal surface. Disposing metal surface(for example, gold, silver, copper) with it , can strengthen its surface to anti-corrupt, anti-oxidant and improve the sticking property between macromolecule(for example, resin) and it. 

2. In rubber industry, usually used to deal with inorganic filling, such as white carbon black, carbon black, fiberglass, mica, etc, can effectively improve mechanics performance and wear-resisting performance of the rubber.
3. In the textile industry, can be used in the shrinkproof finishing of the fabric.


 Packing and storage:


1. Packing: 10KG/pail, 25KG/pail, 200kg/drum or other packing on request.
2. Store in a cool, dry place. Avoid light.






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China (Mainland) | Manufacturer, Trading Company
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