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4-Diethylamino-1,1,1-trifluorobut-3-en-2-one

4-二乙氨基-1,1,1-三氟-3-丁烯-2-酮

Also known as: (E)-4-(diethylamino)-1,1,1-trifluorobut-3-en-2-one, 3-Buten-2-one, 4-(diethylamino)-1,1,1-trifluoro-, 4-(diethylamino)-1,1,1-trifluorobut-3-en-2-one

4-Diethylamino-1,1,1-trifluorobut-3-en-2-one (CAS 21045-62-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12F3NO and a molecular weight of 195.18200 g/mol. It is also known as (E)-4-(diethylamino)-1,1,1-trifluorobut-3-en-2-one, 3-Buten-2-one, 4-(diethylamino)-1,1,1-trifluoro- and 4-(diethylamino)-1,1,1-trifluorobut-3-en-2-one. Key properties include a melting point of 41986ºC, a boiling point of 97-98ºC 2mm, a density of 1.115g/cm3 and a flash point of 46.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21045-62-5
Jingsj CID
J-1500026-4
Molecular Formula
C8H12F3NO
Chinese Name
4-二乙氨基-1,1,1-三氟-3-丁烯-2-酮
Molecular Weight
195.18200 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point41986ºC
Boiling Point97-98ºC 2mm
Density1.115g/cm3
Flash Point46.8ºC

Frequently Asked Questions

What is the CAS number of 4-Diethylamino-1,1,1-trifluorobut-3-en-2-one?

The CAS number of 4-Diethylamino-1,1,1-trifluorobut-3-en-2-one is 21045-62-5.

What are the molecular formula and molecular weight of 4-Diethylamino-1,1,1-trifluorobut-3-en-2-one?

4-Diethylamino-1,1,1-trifluorobut-3-en-2-one has molecular formula C8H12F3NO and molecular weight 195.18200 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Diethylamino-1,1,1-trifluorobut-3-en-2-one (CAS 21045-62-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500026-4 (accessed 2026-10-22).

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