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ChemicalBook >> CAS DataBase List >>1,4-Bis[(trimethylsilyl)ethynyl]benzene

1,4-Bis[(trimethylsilyl)ethynyl]benzene

1,4-Bis[(trimethylsilyl)ethynyl]benzene Structure
1,4-Bis[(trimethylsilyl)ethynyl]benzene structure
CAS No.
17938-13-5
Chemical Name:
1,4-Bis[(trimethylsilyl)ethynyl]benzene
Synonyms
TIMTEC-BB SBB009009;1,4-Bis(trimethylsilyl)ethynylubenzene;1,4-BIS[(TRIMETHYLSILYL)ETHYNYL]BENZENE;1,4-bis[2-(trimethylsilyl)ethynyl]Benzene;1,4-Bis[(trimethylsilyl)ethynyl]benzene,98%;1,4-Bis(trimethylsilyl)ethynylübenzene, 98%;1,4-BIS((TRIMETHYLSILYL)ETHYNYL)BENZENE 98%;Benzene, 1,4-bis[2-(trimethylsilyl)ethynyl]-;rimethyl-[2-[4-(2-trimethylsilylethynyl)phenyl]ethynyl]silane;trimethyl-[2-[4-(2-trimethylsilylethynyl)phenyl]ethynyl]silane
CBNumber:
CB2249335
Molecular Formula:
C16H22Si2
Molecular Weight:
270.52
MDL Number:
MFCD00135433
MOL File:
17938-13-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:58:35
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1,4-Bis[(trimethylsilyl)ethynyl]benzene Properties

Melting point 119 °C
storage temp. 2-8°C
form solid
Hydrolytic Sensitivity 4: no reaction with water under neutral conditions
BRN 2840618
InChI 1S/C16H22Si2/c1-17(2,3)13-11-15-7-9-16(10-8-15)12-14-18(4,5)6/h7-10H,1-6H3
InChIKey CMTMWEXUJQSPCA-UHFFFAOYSA-N
SMILES C[Si](C)(C)C#Cc1ccc(cc1)C#C[Si](C)(C)C
CAS DataBase Reference 17938-13-5(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39
WGK Germany  3
HS Code  29319090
Storage Class 13 - Non Combustible Solids
NFPA 704
1
2 1

1,4-Bis[(trimethylsilyl)ethynyl]benzene price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 462179 1,4-Bis[(trimethylsilyl)ethynyl]benzene 98% 17938-13-5 1g $51.4 2023-06-20 Buy
GFS CHEMICALS 80121 1,4-Bis-(Trimethylsilylethynyl)Benzene, 98% 17938-13-5 5G $164.14 2026-06-03 Buy
aablocks AA0026WE 1,4-Bis((trimethylsilyl)ethynyl)benzene 98% 17938-13-5 1g $57 2026-05-28 Buy
aablocks AA0026WE 1,4-Bis((trimethylsilyl)ethynyl)benzene 98% 17938-13-5 5g $168 2026-05-28 Buy
ACHEMBLOCK V155214 1,4-bis((trimethylsilyl)ethynyl)benzene 95% 17938-13-5 5G $300 2026-05-27 Buy
Product number Packaging Price Buy
462179 1g $51.4 Buy
80121 5G $164.14 Buy
AA0026WE 1g $57 Buy
AA0026WE 5g $168 Buy
V155214 5G $300 Buy

1,4-Bis[(trimethylsilyl)ethynyl]benzene Chemical Properties, Uses, Production

Chemical Properties

White crystalline powder

Uses

1,4-Bis[(trimethylsilyl)ethynyl]benzene is a diyne that can be prepared by the reduction of 1,4-bis[(trimethylsilyl)ethynyl]-2,5-cyclohexadiene-1,4-diol with stannous chloride. It reacts with di(tert-butyl)aluminium hydride by hydroalumination and undergoes addition of one Al-H bond to each C-C triple bond.

General Description

1,4-Bis[(trimethylsilyl)ethynyl]benzene is a diyne that can be prepared by the reduction of 1,4-bis[(trimethylsilyl)ethynyl]-2,5-cyclohexadiene-1,4-diol with stannous chloride. It reacts with di(tert-butyl)aluminium hydride by hydroalumination and undergoes addition of one Al-H bond to each C-C triple bond.

1,4-Bis[(trimethylsilyl)ethynyl]benzene Preparation Products And Raw materials

Raw materials

Preparation Products

1,4-Diethynylbenzene

1,4-Bis[(trimethylsilyl)ethynyl]benzene Suppliers

Global Suppliers ( 78)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44566 61
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Thermo Fisher Scientific 800-810-5118 cnchemical@thermofisher.com China 17752 75
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Shanghai Enchem Industry Co., Ltd. 15021317485 China 1403 58
Shanghai Zhuang Ming New Material Technology Co., Ltd. 17312398916 051386936896 15216715905 sales@zhuangming.net China 1271 58
Alfa Chemistry 1-516-6625404 support@alfa-chemistry.com United States 9170 60
Supplier Advantage
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
Energy Chemical 61
Syntechem Co.,Ltd 57
Thermo Fisher Scientific 75
Sigma-Aldrich 80
Shanghai Enchem Industry Co., Ltd. 58
Shanghai Zhuang Ming New Material Technology Co., Ltd. 58
Alfa Chemistry 60

View Latest Price from 1,4-Bis[(trimethylsilyl)ethynyl]benzene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1,4-Bis[(trimethylsilyl)ethynyl]benzene pictures 2020-02-01 1,4-Bis[(trimethylsilyl)ethynyl]benzene
17938-13-5
 $1.00 1KG Min98% HPLC Career Henan Chemical Co

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TIMTEC-BB SBB009009 1,4-BIS[(TRIMETHYLSILYL)ETHYNYL]BENZENE 1,4-BIS((TRIMETHYLSILYL)ETHYNYL)BENZENE 98% 1,4-Bis(trimethylsilyl)ethynylübenzene, 98% 1,4-Bis[(trimethylsilyl)ethynyl]benzene,98% 1,4-Bis(trimethylsilyl)ethynylubenzene 1,4-bis[2-(trimethylsilyl)ethynyl]Benzene 1,4-BIS-(TRIMETHYLSILYLETHYNYL)BENZENE, 98%1,4-BIS-(TRIMETHYLSILYLETHYNYL)BENZENE, 98%1,4-BIS-(TRIMETHYLSILYLETHYNYL)BENZENE, 98% Benzene, 1,4-bis[2-(trimethylsilyl)ethynyl]- rimethyl-[2-[4-(2-trimethylsilylethynyl)phenyl]ethynyl]silane trimethyl-[2-[4-(2-trimethylsilylethynyl)phenyl]ethynyl]silane 17938-13-5 19938-13-5 C6H4C8801CSiCH332 Building Blocks Alkynes Organic Building Blocks Internal Alkynes Internal Organic Building Blocks