2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol

2-甲基-4-(三甲基硅基)-3-丁炔-2-醇

Also known as: 3-Butyn-2-ol,2-methyl-4-(trimethylsilyl)-, 2-Methyl-4-trimethylsilyl-3-butyn-2-ol, 3-HYDROXY-3-METHYL-1-TRIMETHYLSILYL-1-BUTYNE, NSC 331768

2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol (CAS 5272-33-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H16OSi and a molecular weight of 156.29800 g/mol. It is also known as 3-Butyn-2-ol,2-methyl-4-(trimethylsilyl)-, 2-Methyl-4-trimethylsilyl-3-butyn-2-ol and 3-HYDROXY-3-METHYL-1-TRIMETHYLSILYL-1-BUTYNE. Key properties include a melting point of 42-45ºC, a boiling point of 95ºC(55 torr), a density of 0.882 g/cm3 and a flash point of 66.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5272-33-3
Jingsj CID: J-1348113-1
Molecular Formula: C₈H₁₆OSi
Chinese Name: 2-甲基-4-(三甲基硅基)-3-丁炔-2-醇
Molecular Weight: 156.29800 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	42-45ºC
Boiling Point	95ºC(55 torr)
Density	0.882 g/cm3
Flash Point	66.8ºC

Frequently Asked Questions

What is the CAS number of 2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol?

The CAS number of 2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol is 5272-33-3.

What are the molecular formula and molecular weight of 2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol?

2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol has molecular formula C8H16OSi and molecular weight 156.29800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Methyl-4-(trimethylsilyl)but-3-yn-2-ol (CAS 5272-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1348113-1 (accessed 2026-10-22).

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