Bis[3-(triethoxysilyl)propyl]tetrasulfide

Uses Application

Product Name: Bis[3-(triethoxysilyl)propyl]tetrasulfide
CAS No.: 40372-72-3
Chemical Name: Bis[3-(triethoxysilyl)propyl]tetrasulfide
Synonyms: TESPT;A-1289;KHSI69;Z-6940;CG-Si69;KBE-846;CouplingagentG-407;Bis[3-(triethoxysily;Silane coupler KH-858;SilanecouplingagentSI-69
CBNumber: CB1169012
Molecular Formula: C18H42O6S4Si2
Formula Weight: 538.95
MOL File: 40372-72-3.mol

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Property

Boiling point:: 250 °C
Density: 1.08 g/mL at 20 °C(lit.)
refractive index: n20/D 1.49
Flash point:: 91°C
storage temp.: 2-8°C, stored under nitrogen
form: Liquid
Specific Gravity: 1.095
Appearance: Colorless to light yellow Liquid
Water Solubility: Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
Hydrolytic Sensitivity: 7: reacts slowly with moisture/water
BRN: 2062235
InChI: 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
InChIKey: VTHOKNTVYKTUPI-UHFFFAOYSA-N
SMILES: CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC
CAS DataBase Reference: 40372-72-3(CAS DataBase Reference)
EPA Substance Registry System: 3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy- (40372-72-3)

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Safety

Hazard Codes: Xi
Safety Statements: 23-24/25
WGK Germany: 1
TSCA: Yes
HS Code: 29309090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 15200
Product name: Bis[3-(triethoxysilyl)propyl] tetrasulfide
Purity: technical, ≥90% (NMR)
Packaging: 50ml
Price: $280
Updated: 2025/07/31

TRC

Product number: B585703
Product name: Bis[3-(triethoxysilyl)propyl] tetrasulfide
Packaging: 1g
Price: $45
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FB33713
Product name: Bis[3-(triethoxysilyl)propyl] tetrasulfide
Packaging: 500g
Price: $80
Updated: 2021/12/16

Oakwood

Product number: S02150
Product name: Bis [3-(triethoxysilyl )propyl ] tetrasulphide
Packaging: 500g
Price: $100
Updated: 2021/12/16

AK Scientific

Product number: N138
Product name: Bis[3-(triethoxysilyl)propyl] tetrasulfide
Packaging: 500g
Price: $100
Updated: 2021/12/16

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Chemical Properties,Usage,Production

Uses

Bis[3-(triethoxysilyl)propyl]tetrasulfide is a silylating coupling agent and modifier, and has been used in the design of a new generation of sustainable self-healing styrene-butadiene compounds.

Application

When used in rubber compounds, it produces these effects:
Coupling agent for non-black pigments;
Cure equilibrium for reversion resistance;
Curing agent for good heat aging.
Coupling Agent - With as little as 0.5 to 1.0 phr with clay fillers and 1.0 to 4.0 phr for silica pigments, BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE couples the non-black pigment and elastomers resulting in increases in modulus and increase in abrasion resistance.
Cure Equilibrium - BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE has four sulfur atoms positioned in the center. At cure temperatures, these participate with sulfur in producing polysulfidic crosslinks. The BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE replaces crosslinks broken during cure, resulting in reversion resistant, and with proper compounding, reversion free compounds. This is known as equilibrium cure. The dynamic flex characteristics, E.G., heat generation and crack growth, are dramatically improved.
Curing Agent - Removing all sulfur from the compound for NR, SBR, NBR and replacing it with BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE and certain thiuram accelerators, produces compounds with excellent heat aging characteristics in addition to the coupling effects. BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE is a silane coupling agent that has crosslinking and accelerator activity in rubber compounds.
Area of rubber industry where they would be beneficial
Footwear - Abrasion resistance | Cutting and chunking resistance | Flex life improvement
Rolls - Abrasion resistance | Aging resistance | Processing | Set reduction (better load bearing) | Reduced water swell | Lower hysteresis
Mechanical Molded Goods - Increased modulus | Better heat aging | Compression set reduction | Dynamic property improvement | Reduced swell to polar liquids | Filler substitution (non-black for black)
Hose - Improved abrasion on cover | Better heat aging | Increased modulus | Lower compression set | Improved adhesion to reinforcing elements
Solid Tires - Improved abrasion | Lower hysteresis | Higher modulus | Improved processing | Possibly better adhesion
Tires - Treads for abrasion, hot tear | Carcass for adhesion and/or filler substitution | Breaker (belt) stocks for adhesion
Belts Flat Belts - Increased abrasion | Improved reversion resistance | Reduced cost with clay substitution for black | Improved cord adhesion | Increased flex life and modulus
V Belts - Increased modulus | Improved abrasion | Longer flex life | Improved adhesion to reinforcing elements

Chemical Properties

Yellowish clear liquid

Uses

Bis[3-(triethoxysilyl)propyl]tetrasulfide is used in radial tires, rubber tire treads, carcass, tire walls, solid rubber tires and other rubber products. It acts as a chemical intermediate and as a cross linking agent. Furthermore, it acts as a coupling agent used to chemically modify silica surface. In addition, it serves as a curing agent for good heat aging.

Uses

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.

Bis[3-(triethoxysilyl)propyl]tetrasulfide Preparation Products And Raw materials

Raw materials

Sodium polysulfide

Preparation Products

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Bis[3-(triethoxysilyl)propyl]tetrasulfide Suppliers

China 267 Europe 2 Germany 3 India 4 Japan 4 Singapore 1 South Korea 2 Switzerland 1 United Kingdom 11 United States 36 Global 331

Jiangxi Hungpai New Material Co., Ltd.

Tel: 15821603031
Email: karma@hungpai.sina.net
Country: China
ProdList: 25
Advantage: 58

Hubei Xinjiecheng Chemical Technology Co., Ltd

Tel: 13554075426
Email: 1014723310@qq.com
Country: China
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Nanjing Runiver Technology Co.,Ltd.

Tel: 18014470519; 18014470519
Fax: 025-52215598
Email: info@runivertech.com
Country: China
ProdList: 18
Advantage: 55

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
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Beijing HwrkChemical Technology Co., Ltd

Tel: 18515581800 18501085097
Fax: 010-89508210
Email: sales.bj@hwrkchemical.com
Country: China
ProdList: 9400
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Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44801
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Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696
Email: info@hanhongsci.com
Country: China
ProdList: 42934
Advantage: 64

XiaoGan ShenYuan ChemPharm co,ltd

Tel: 15527768836
Email: 1791901229@qq.com
Country: China
ProdList: 6950
Advantage: 52

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View Lastest Price from Bis[3-(triethoxysilyl)propyl]tetrasulfide manufacturers

HANGZHOU HAILAN CHEMICAL CO.,LTD.

Product: Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%min
Supply Ability: 20tons
Release date: 2025-09-02

Anhuyan (Hainan) Biotechnology Co., LTD

Product: Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
Price: US $0.00-0.00/g
Min. Order: 0.01g
Purity: 99%
Supply Ability: 20000kg
Release date: 2025-06-17

Hebei Chuanghai Biotechnology Co., Ltd

Product: Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-12-11

40372-72-3, Bis[3-(triethoxysilyl)propyl]tetrasulfideRelated Search:

2-Ethoxyphenol Bis(2-methyl-3-furyl)disulfide 2-Cyanoethyl N,N,N',N'-tetraisopropylphosphorodiamidite Bis(triethoxysilylpropyl) disulfide 3-Aminopropyltriethoxysilane 3-Methacryloxypropyltrimethoxysilane 3-(2-Aminoethylamino)propyl-dimethoxymethylsilane POLYAMINOPROPYL BIGUANIDE Phenetidine Propyl gallate Ethoxyquin Ethoxyethyne DIETHOXYMETHANE 2-Ethoxyethanol Diethoxymethyl acetate Propyl butyrate Trimethoxysilylpropanethiol Triethoxysilane

TESPT

BIS(TRIETHOXYSILYLPROPYL)TETRASULPHANE

BIS(3-(TRIETHOXYSILYL)PROPYL)TETRASULFIDE

BIS [3-(TRIETHOXYSILYL )PROPYL ] TETRASULPHIDE

3,3'-TETRATHIOBIS(PROPYL-TRIETHOXYSILANE)

Bis(3-triethoxysilylpropyl)-tetrasulfan

3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane,4,4',15,15-tretraethoxy-

Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)

bis(3-briethoxy silane propyl)-tetrsulfide

Si-69 Silane coupling agent

3-triethoxy-silylpropyl-tetrasulfane

Silane coupler KH-858

[Pertetrathiobis(trimethylene)]bis(triethoxysilane)

A-1289

Bis(3-triethoxysilylpropyl) pertetrasulfide

Bis(triethoxysililpropyl)tetrasulfane

Bis[3-(Triethoxysilyl)Propyl]Tetrasulfide, S (Typical)

Bis[3-(triethoxysily

3,16-Dioxa-4,15-disila-4,4,15,15-tetraethoxy-8,9,10,11-tetrathiaoctadecane

Bis[3-(triethoxysilyl)propyl]tetrasulfide(Si69)

Bis-[3-(triethoxysilylpropyl)]-tetrasulfide (GW-04、GW-96-2、GY-69)

BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE, tech-95

16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane,4,4’,15,15-tretraethoxy-3

9,10,11-tetrathia-4,15-disilaoctadecane,4,4,15,15-tetraethoxy-16-dioxa-8

CouplingagentG-407

Bis(triethoxysilylpropyl)tetrasulfide

4,4,15,15-tetraethoxy-3,16-dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane

Bis(3-triethoxysilylpropyl) tetrasulfane

3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy-

Bis[3-(triethoxysilyl)prop-1-yl]tetrasulphane

Bis(3-(triethoxysilyl)propyl)tetrasulfide, S 22% (typical)

Bis[3-(triethoxysilyl)propyl] tetrasulfide technical, >=90% (NMR)

3-phenyl-4-(phenylmethyl)-1,4-dihydropyrazol-5-one

KHSI69

Bis[3-(triethoxysilyl)propyl]tetrasulfide (CG-Si69)

Bis[3-(triethoxysilyl)prop-1-yl]tetrasulfane

CG-Si69

Bis[3-(triethoxysilyl)propyl]tetrasulfise

triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane

Bis - [3 - (triethoxysilicon) propyl] - tetrasulfide

Rubber coupling agent SI-69

SilanecouplingagentSI-69

KBE-846

Z-6940

Silane coupling agent 69

CG-SI 69 Bis[3-(triethoxysilyl)propyl] tetrasulfide

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

bis-(γ-triethoxysilylpropyl)-tetrasulfide

40372-72-3

C18H42O6S4Si2

CH3CH2O3SiCH2CH2CH2SS2

C18H42Si2S4O6

C12H30O6S4Si

Organometallic Reagents

Organosilicon

Trialkoxysilanes

silane

Adhesion Promoters