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

Also known as: 1,4-Bis(trimethylsilyl)butadiyne, BTMSBD, Bis(trimethylsilyl)-1,3-butadiyne, Bis(trimethylsilyl)butadiyne, 1,4-Bis(trimethylsilyl)-1,3-butanediyne, 1,4-Bis(trimethylsilyl)-1-butyne-3-yne, 1,4-Bis(trimethylsilyl)buta-1,3-diyne, 1,4-Bis(trimethylsilyl)butane-1,3-diyne, 1,4-Di(trimethylsilyl)-1,3-butadiyne, trimethyl(4-trimethylsilylbuta-1,3-diynyl)silane, Silane, 1,1'-(1,3-butadiyne-1,4-diyl)bis[1,1,1-trimethyl-, MFCD00009839

1,4-Bis(trimethylsilyl)-1,3-butadiyne (CAS 4526-07-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H18Si2 and a molecular weight of 194.421 g/mol. Key properties include a melting point of 111-113 °C(lit.), a boiling point of 197.7±23.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 57.3±15.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4526-07-2
Jingsj CID: J-1012016-8
Molecular Formula: C₁₀H₁₈Si₂
Molecular Weight: 194.421 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	111-113 °C(lit.)
Boiling Point	197.7±23.0 °C at 760 mmHg
Density	0.8±0.1 g/cm3
Flash Point	57.3±15.6 °C
Exact Mass	194.094696
LogP	5.57
Vapor Pressure	0.5±0.4 mmHg at 25°C
Refractive Index	1.446

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,4-Bis(trimethylsilyl)-1,3-butadiyne?

The CAS number of 1,4-Bis(trimethylsilyl)-1,3-butadiyne is 4526-07-2.

What are the molecular formula and molecular weight of 1,4-Bis(trimethylsilyl)-1,3-butadiyne?

1,4-Bis(trimethylsilyl)-1,3-butadiyne has molecular formula C10H18Si2 and molecular weight 194.421 g/mol.

What are the upstream and downstream products of 1,4-Bis(trimethylsilyl)-1,3-butadiyne?

For 1,4-Bis(trimethylsilyl)-1,3-butadiyne, Upstream Products: Trimethylsilylacetylene, Chlorotrimethylsilane, Hexachloro-1,3-butadiene; Downstream Products: 3,5-Octadiyne,2,2,7,7-tetramethyl-, butadiyne, diphenyl-.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "1,4-Bis(trimethylsilyl)-1,3-butadiyne (CAS 4526-07-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012016-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.