1-Trimethylsilyloxy-3-butyne

1-三甲基硅氧基-3-丁炔

Also known as: (3-Butynyloxy)trimethylsilane, but-3-ynoxy(trimethyl)silane, but-3-ynyloxytrimethylsilane, trimethylsilyl 3-butynyl ether, 1-trimethylsiloxy-3-butyne, 4-trimethylsilanyloxy-but-1-yne, Silane, (3-butyn-1-yloxy)trimethyl-

1-Trimethylsilyloxy-3-butyne (CAS 17869-75-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H14OSi and a molecular weight of 142.27100 g/mol. It is also known as (3-Butynyloxy)trimethylsilane, but-3-ynoxy(trimethyl)silane and but-3-ynyloxytrimethylsilane. Key properties include a boiling point of 63ºC, a density of 0.833 and a flash point of 20.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17869-75-9
Jingsj CID
J-1049404-2
Molecular Formula
C7H14OSi
Chinese Name
1-三甲基硅氧基-3-丁炔
Molecular Weight
142.27100 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point63ºC
Density0.833
Flash Point20.6ºC

Frequently Asked Questions

What is the CAS number of 1-Trimethylsilyloxy-3-butyne?

The CAS number of 1-Trimethylsilyloxy-3-butyne is 17869-75-9.

What are the molecular formula and molecular weight of 1-Trimethylsilyloxy-3-butyne?

1-Trimethylsilyloxy-3-butyne has molecular formula C7H14OSi and molecular weight 142.27100 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Trimethylsilyloxy-3-butyne (CAS 17869-75-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1049404-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.