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1,4-Bis(trimethylsilyl)-1,3-butadiyne

1,4-Bis(trimethylsilyl)-1,3-butadiyne structure

CAS No.: 4526-07-2

Chemical Name:: 1,4-Bis(trimethylsilyl)-1,3-butadiyne

Synonyms: 1,4-Bis(trimethylsilyl)buta-1,3-diyne;BTMSBD;DK018;TIMTEC-BB SBB008995;Bis(trimethylsiyl)butadiyne;BIS(TRIMETHYLSILYL)BUTADIYNE;1,4-BIS(TRIMETHYLSILYL)BUTADIYNE;Bis(trimethylsilyl)-1,3-butadiyne;4-Bis(trimethylsilyl)-1,3-butadiyne;1,4-Di(trimethylsilyl)-1,3-butadiyne

CBNumber:: CB1485017

Molecular Formula:: C10H18Si2

Molecular Weight:: 194.42

MDL Number:: MFCD00009839

MOL File:: 4526-07-2.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:49:17

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1,4-Bis(trimethylsilyl)-1,3-butadiyne Properties

Melting point	111-113 °C(lit.)
Boiling point	197.7±23.0 °C(Predicted)
Density	0.974 g/mL at 20 °C(lit.)
refractive index	n20/D 1.384(lit.)
Flash point	>45°C
storage temp.	2-8°C
form	solid
color	White to Light yellow to Light orange
Water Solubility	Insoluble in water.
Hydrolytic Sensitivity	4: no reaction with water under neutral conditions
BRN	1758268
InChI	InChI=1S/C10H18Si2/c1-11(2,3)9-7-8-10-12(4,5)6/h1-6H3
InChIKey	LBNVCJHJRYJVPK-UHFFFAOYSA-N
SMILES	C([Si](C)(C)C)#CC#C[Si](C)(C)C
CAS DataBase Reference	4526-07-2(CAS DataBase Reference)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02

Signal word

Danger

Hazard statements

H228

Precautionary statements

P210

PPE

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Codes

Risk Statements

Safety Statements

16-22-24/25

RIDADR

UN 1325 4.1/PG 2

WGK Germany

TSCA

HazardClass

4.1

PackingGroup

HS Code

29319090

Storage Class

4.1B - Flammable solid hazardous materials

Hazard Classifications

Flam. Sol. 1

NFPA 704

	1
0		0

1,4-Bis(trimethylsilyl)-1,3-butadiyne price More Price(41)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	263567	1,4-Bis(trimethylsilyl)butadiyne 98%, stable crystalline form of butadiyne	4526-07-2	5g	$215	2026-04-30	Buy
Sigma-Aldrich	263567	1,4-Bis(trimethylsilyl)butadiyne 98%, stable crystalline form of butadiyne	4526-07-2	25g	$772	2026-04-30	Buy
TCI Chemical	B1298	1,4-Bis(trimethylsilyl)-1,3-butadiyne >99.0%(GC)	4526-07-2	1g	$80	2026-04-30	Buy
TCI Chemical	B1298	1,4-Bis(trimethylsilyl)-1,3-butadiyne >99.0%(GC)	4526-07-2	5g	$256	2026-04-30	Buy
Usbiological	267222	1,4-Bis(trimethylsilyl)-1,3-butadiyne Asreported	4526-07-2	1g	$322	2026-06-03	Buy

Product number	Packaging	Price	Buy
263567	5g	$215	Buy
263567	25g	$772	Buy
B1298	1g	$80	Buy
B1298	5g	$256	Buy
267222	1g	$322	Buy

1,4-Bis(trimethylsilyl)-1,3-butadiyne Chemical Properties, Uses, Production

Chemical Properties

light yellow to light beige cryst.powder or flakes

Uses

1,4-Bis(trimethylsilyl)-1,3-butadiyne is used in Negishi protocol for the synthesis of glycosylated oligo(ethynylene)s. It is also used as pharmaceutical intermediates.

Uses

1,4-Bis(trimethylsilyl)butadiyne can be used as a reagent to prepare:

1,1,3,4-Tetrasilyl-substituted 1,3-butadienes or 1,1,3,4-tetrasilyl-substituted 1,2-butadienes by hydrosilylation reaction using various hydridosilanes and catalysts.
Glycosylated oligo(ethynylene)s using the Negishi reaction.
(±) Falcarinol, a polyacetylene class of fatty alcohol.

1,4-Bis(trimethylsilyl)-1,3-butadiyne Preparation Products And Raw materials

Raw materials

Preparation Products

2,7-Dimethyl-3,5-octadiyn-2,7-diol

1,4-Bis(trimethylsilyl)-1,3-butadiyne Suppliers

Global Suppliers ( 157)

Supplier	Tel	Email	Country	ProdList	Advantage
Taizhou FRIEND Chemical Co., Ltd.	025-0523-86200082 15380713688	Austin@fredchem.cn	China	153	55
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
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
China DongFan Chemical Co.,LTD	86-0571-85151182		China	5681	66
Sichuan Kulinan Technology Co., Ltd	400-1166-196 18981987031	cdhxsj@163.com	China	11674	57
Chengdu Ai Keda Chemical Technology Co., Ltd.	4008-755-333 18080918076	800078821@qq.com	China	9706	55

Supplier	Advantage
Taizhou FRIEND Chemical Co., Ltd.	55
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Shanghai Hanhong Scientific Co.,Ltd.	64
China DongFan Chemical Co.,LTD	66
Sichuan Kulinan Technology Co., Ltd	57
Chengdu Ai Keda Chemical Technology Co., Ltd.	55

View Latest Price from 1,4-Bis(trimethylsilyl)-1,3-butadiyne manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-08-07	14-BIS(TRIMETHYLSILYL)-13-BUTADIYNE 4526-07-2	$11.00-25.00	1KG	99%	200000KG	Shaanxi Dideu Medichem Co. Ltd
2026-06-30	1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE 4526-07-2		1KG	98.0%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
2026-03-20	1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE 4526-07-2		1KG	99%	20 mt	Hebei Chuanghai Biotechnology Co., Ltd

14-BIS(TRIMETHYLSILYL)-13-BUTADIYNE
4526-07-2
$11.00-25.00
99%
Shaanxi Dideu Medichem Co. Ltd

1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
4526-07-2
98.0%
Shaanxi Dideu New Materials Co. Ltd

1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE
4526-07-2
99%
Hebei Chuanghai Biotechnology Co., Ltd

1,4-Bis(trimethylsilyl)-1,3-butadiyne Spectrum

1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE(4526-07-2)MS 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE(4526-07-2)¹HNMR 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE(4526-07-2)IR1 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE(4526-07-2)IR2 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE(4526-07-2)Raman

4526-07-2 (1,4-Bis(trimethylsilyl)-1,3-butadiyne) Related Search:

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1,4-BIS-(TRIMETHYLSILYL)-1,3-BUTADIYNE, 98%1,4-BIS-(TRIMETHYLSILYL)-1,3-BUTADIYNE, 98%1,4-BIS-(TRIMETHYLSILYL)-1,3-BUTADIYNE, 98% 1,4-Bis(trimethylsilyl)-1,3-butanediyne 1,4-Bis(trimethylsilyl)-1-butyne-3-yne 1,4-Bis(trimethylsilyl)butane-1,3-diyne 1,4-Di(trimethylsilyl)-1,3-butadiyne Bis(trimethylsilyl)-1,3-butadiyne 4-Bis(trimethylsilyl)-1,3-butadiyne 1,4-Bis(trimethylsilyl)butadiyne 98%, stable crystalline form of butadiyne 1,4-BIS(TRIMETHYLSILYL)BUTADIYNE BIS(TRIMETHYLSILYL)BUTADIYNE TIMTEC-BB SBB008995 Trimethyl[4-(trimethylsilyl)-1,3-butadiynyl]silane 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE 98% 1,4-BIS(TRIMETHYLSILYL)-1,3-BUTADIYNE, 9 8% 1,4-Bis(trimethylsilyl)1,3-butadiyneBTMSBD Bis(trimethylsiyl)butadiyne Silane, 1,1'-(1,3-butadiyne-1,4-diyl)bis[1,1,1-trimethyl- DK018 1,4-Bis(trimethylsilyl)buta-1,3-diyne BTMSBD 1,4-Bis(trimethylsilyl)-1,3-butadiyne 4526-07-2 959-31-1 4526-7-2 4536-07-2 CH33SiCCCCSiCH33 C10H18Si2 CH33SiC8801CC8801CSiCH33 Alkynes Building Blocks Organic Building Blocks Internal LB Films Si (Classes of Silicon Compounds) Functionalized Acetylenes Diyne Compounds (LB Films) Acetylenes Ethynylsilanes Si-(C)4 Compounds Silicon Compounds (for Synthesis) Si-(C)4 Compounds Silicon Compounds (for Synthesis) Synthetic Organic Chemistry Diyne Compounds (LB Films) LB Films Acetylenes Ethynylsilanes Functional Materials Functionalized Acetylenes Si (Classes of Silicon Compounds) Alkynes Building Blocks Chemical Synthesis Internal Organic Building Blocks