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Bis[3-(triethoxysilyl)propyl] tetrasulfide

  • CAS No. 40372-72-3

  • Cat. No. CS-0136141
  • Molecule weight538.95
  • Purity≥95%
  • MDL No.MFCD00053751

*For research and further manufacturing use only, not for direct human use.

Bis[3-(triethoxysilyl)propyl] tetrasulfide|CS-0136141

Structure of 40372-72-3

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General Information

  • CAS No. 40372-72-3
  • Cat. No. CS-0136141
  • Purity ≥95%
  • MDL No. MFCD00053751
  • Storage 4°C, stored under nitrogen
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₁₈H₄₂O₆S₄Si₂
  • Molecular Weight 538.95
  • Synonym(s) Silane Coupling Agent Si-69; Bis[3-(triethoxysilyl)propyl] tetrasulfide
  • SMILES CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC

Description

Bis[3-(triethoxysilyl)propyl] tetrasulfide (TESPTS) is generally used as a crosslinking agent and reinforcing filler in the manufacturing of rubber. TESPT film provides corrosion protection to the metallic substrates. It is also used as a precursor in the synthesis of mesoporous organosilicas.

Application

Bis[3-(triethoxysilyl)propyl] tetrasulfide serves as a versatile crosslinking agent in silane-based polymer systems, enabling efficient network formation through hydrosilylation or radical-initiated sulfur-silicon reactions. Its dual triethoxysilyl groups provide robust adhesion to inorganic substrates, while the tetrasulfide backbone facilitates controlled crosslinking under mild conditions. The compound exhibits excellent bench stability and compatibility with standard curing protocols, making it ideal for applications requiring durable, moisture-resistant coatings and adhesive formulations.

Synthesis

  • Route1
    • null|null
      5089-70-3
    • ~99%
    • In-stock
      Bis[3-(triethoxysilyl)propyl] tetrasulfide|CS-0136141
      40372-72-3

    References

    • Frings, Albert; Janssens, Louis; Lotter, Stefan; Deschler, Ulrich; Alig, Alfred Patent: US2007/66841 A1, 2007 ; Location in patent: Page/Page column 3-4 ;
  • Route2
    • null|null
      5089-70-3
    • ~%
    • In-stock
      Bis[3-(triethoxysilyl)propyl] tetrasulfide|CS-0136141
      40372-72-3
    • 4,4,13,13-Tetraethoxy-3,14-dioxa-8,9-dithia-4,13-disilahexadecane|CS-0151944
      56706-10-6
    • null|null
      56706-11-7

    References

    • Korth, Karsten; Kiefer, Ingo; Alig, Alfred; Deschler, Ulrich; Droege, Helmut; Koenigstein, Sefan; Schwan, Stephanie Patent: US2010/29971 A1, 2010 ; Location in patent: Page/Page column 10 ;

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H315-H319-H335
Precautionary Statements : P260-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

  • TPSA   55.38
  • LogP   6.5412
  • H_Acceptors   10
  • H_Donors   0
  • Rotatable_Bonds   23

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