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Sigma-Aldrich

Bis[3-(triethoxysilyl)propyl] tetrasulfide

technical, ≥90% (NMR)

Synonym(s):

TESPTS, 3,3′-Tetrathiobis(propyl-triethoxysilane)

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About This Item

Empirical Formula (Hill Notation):
C18H42O6S4Si2
CAS Number:
40372-72-3
Molecular Weight:
538.95
Beilstein:
2062235
EC Number:
254-896-5
MDL number:
MFCD00053751
UNSPSC Code:
12352103
PubChem Substance ID:
329750768
NACRES:
NA.22

grade

technical

Assay

≥90% (NMR)

form

liquid

refractive index

n20/D 1.49

density

1.08 g/mL at 20 °C (lit.)

SMILES string

CCO[Si](CCCSSSSCCC[Si](OCC)(OCC)OCC)(OCC)OCC

InChI

1S/C18H42O6S4Si2/c1-7-19-29(20-8-2,21-9-3)17-13-15-25-27-28-26-16-14-18-30(22-10-4,23-11-5)24-12-6/h7-18H2,1-6H3

InChI key

VTHOKNTVYKTUPI-UHFFFAOYSA-N

Application

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.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

212.0 °F - closed cup

Flash Point(C)

100 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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