4-tert-Butyldimethylsiloxy-3-penten-2-one

4-叔丁基二甲基硅氧基-3-戊烯-2-酮

Also known as: 2-(tert-Butyldimethylsiloxy)pent-2-en-4-one, 2-(TERT-BUTYLDIMETHYLSILOXY)PENT-2-EN-4-ONE, 2,4-pentane dione t butyl dimethyl silyl enol ether, acetyaceton enol tert-butyldimethylsilyl ether, t-Butyldimethylsilylacetylacetonate, 4-tert-Butyldimethylsiloxy-3-penten-2-one, mixture of isomers, Butyldimethylsiloxypentenone, 2-[(tert-Butyldimethylsilyl)oxy]-2-penten-4-one

4-tert-Butyldimethylsiloxy-3-penten-2-one (CAS 69404-97-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H22O2Si and a molecular weight of 214.377 g/mol. It is also known as 2-(tert-Butyldimethylsiloxy)pent-2-en-4-one, 2-(TERT-BUTYLDIMETHYLSILOXY)PENT-2-EN-4-ONE and 2,4-pentane dione t butyl dimethyl silyl enol ether. Key properties include a boiling point of 284.4±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 80.6±0.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
69404-97-3
Jingsj CID
J-914497-4
Molecular Formula
C11H22O2Si
Chinese Name
4-叔丁基二甲基硅氧基-3-戊烯-2-酮
Molecular Weight
214.377 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point284.4±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point80.6±0.0 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-tert-Butyldimethylsiloxy-3-penten-2-one?

The CAS number of 4-tert-Butyldimethylsiloxy-3-penten-2-one is 69404-97-3.

What are the molecular formula and molecular weight of 4-tert-Butyldimethylsiloxy-3-penten-2-one?

4-tert-Butyldimethylsiloxy-3-penten-2-one has molecular formula C11H22O2Si and molecular weight 214.377 g/mol.

Is 4-tert-Butyldimethylsiloxy-3-penten-2-one hazardous?

4-tert-Butyldimethylsiloxy-3-penten-2-one has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-tert-Butyldimethylsiloxy-3-penten-2-one (CAS 69404-97-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-914497-4 (accessed 2026-10-25).

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