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Bis[3-(triethoxysilyl)propyl] tetrasulfide

ALDRICH/15200 - technical, ≥90% (NMR)

Synonym: TESPTS; 3,3′-Tetrathiobis(propyl-triethoxysilane)

CAS Number: 40372-72-3
Empirical Formula (Hill Notation): C18H42O6S4Si2
Molecular Weight: 538.95
EC Number: 254-896-5
MDL Number: MFCD00053751
Linear Formula: C18H42O6S4Si2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-15200-50ML 50 mL
 $272.00
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assay ≥90% (NMR)
density 1.08 g/mL at 20 °C (lit.)
form liquid
grade technical
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
Quality Level 200 
refractive index n20/D 1.49
SMILES string CCO[Si](CCCSSSSCCC[Si](OCC)(OCC)OCC)(OCC)OCC
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.
Packaging: 50 mL in glass bottle
RIDADR NONH for all modes of transport
WGK Germany WGK 1
Flash Point(F) 212.0 °F - closed cup
Flash Point(C) 100 °C - closed cup
Purity ≥90% (NMR)
Density 1.08 g/mL at 20 °C (lit.)
Refractive Index n20/D 1.49
UNSPSC 12352103

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