Silicone Fluids & Oils Available to Source

Bis-(3-triethoxysilylpropyl)-tetrasulfide

Si-69
CAS 40372-72-3 · MF C18H42O6S4Si2 · MW 539.0 g/mol

Bis-(3-triethoxysilylpropyl)-tetrasulfide (Si-69) is a silicone coupling agent with the molecular formula C18H42O6S4Si2 that functions as an emollient, lubricant, and slip & leveling additive. This organosilane compound is primarily utilized in plastics and polymer applications where it provides enhanced processing characteristics and surface modification properties. The tetrasulfide linkage structure enables effective…

SDS / TDS Download
CAS Number
40372-72-3
Molecular Formula
C18H42O6S4Si2
Molecular Weight
539.0 g/mol
Material Family
Silicone Fluids & Oils
Functional Roles
Conditioning Emolliency
Industries Served
Plastics & Polymers
Physical Properties
physical_description
Liquid; Liquid, Other Solid; Other Solid; Dry Powder, Liquid
Chemical Identity
CAS Number40372-72-3
IUPAC Nametriethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane
InChI KeyVTHOKNTVYKTUPI-UHFFFAOYSA-N
PubChem CID 162012
Synonyms & Trade Names
Bis[3-(triethoxysilyl)propyl] tetrasulfide 4,4,15,15-Tetraethoxy-3,16-dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane J98V193ZRY bis(3-triethoxysilylpropyl)tetrasulfane 3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy- DTXCID109362 bis(triethoxysilylpropyl) tetrasulfide bis-(triethoxysilylpropyl)tetrasulfane bis(3-(triethoxysilyl)propyl) tetrasulfide 3,3'-bis(triethoxysilylpropyl) tetrasulfide BIS(.GAMMA.-(TRIETHOXYSILYL)PROPYL) TETRASULFIDE 3,16-DIOXA-8,9,10,11-TETRATHIA-4,15-DISILAOCTADECANE, 4,4,15,15- RefChem:96311 BIS(GAMMA-(TRIETHOXYSILYL)PROPYL) TETRASULFIDE
Full Description

Bis-(3-triethoxysilylpropyl)-tetrasulfide (Si-69) is a silicone coupling agent with the molecular formula C18H42O6S4Si2 that functions as an emollient, lubricant, and slip & leveling additive. This organosilane compound is primarily utilized in plastics and polymer applications where it provides enhanced processing characteristics and surface modification properties. The tetrasulfide linkage structure enables effective bonding between organic polymers and inorganic substrates in industrial formulations.

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Packaging Options
25 kg Bags / Drums
Standard pallet quantities
1,000 L IBC Totes
For liquid products
ISO Tank / Flexitank
Bulk liquid — 20,000+ L
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