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

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
Product description Number Pack Size Price
1,4-Bis[(trimethylsilyl)ethynyl]benzene 98% 462179 1g $51.4
1,4-Bis-(Trimethylsilylethynyl)Benzene, 98% 80121 5G $164.14
1,4-Bis((trimethylsilyl)ethynyl)benzene 98% AA0026WE 1g $57
1,4-Bis((trimethylsilyl)ethynyl)benzene 98% AA0026WE 5g $168
1,4-bis((trimethylsilyl)ethynyl)benzene 95% V155214 5G $300
More product size

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(18)

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

Global( 80)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daken Advanced Materials Co.,Ltd
+86-2158073036 info@dakenam.com China 13901 58
career henan chemical co
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Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Alfa Chemistry
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Jilin Chinese Academy of Sciences-yanshen Technology
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Aladdin Scientific
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Junwee Chemical co., Ltd.
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Hebei Chuanghai Biotechnology Co., Ltd
+86-15350571055 Sibel@chuanghaibio.com China 6085 58
Shanghai Zhuangming Biopharma Co., Ltd.
inquiry@zmsilane.com China 725 58
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
+8618950047208 ellena@amitychem.com China 43414 58

View Lastest 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
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