4-[4-(Dimethylamino)phenyl]but-3-en-2-one

Also known as: 4-(4-Dimethylaminophenyl)-3-buten-2-one, 4-Dimethylaminobenzalacetone, DMAPB, p-Dimethylaminostyryl methyl ketone, (E)-4-[4-(dimethylamino)phenyl]but-3-en-2-one

4-[4-(Dimethylamino)phenyl]but-3-en-2-one (CAS 5432-53-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H15NO and a molecular weight of 189.25400 g/mol. Key properties include a boiling point of 340.6ºC at 760 mmHg, a density of 1.039 g/cm3 and a flash point of 132.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5432-53-1
Jingsj CID: J-1106228-5
Molecular Formula: C₁₂H₁₅NO
Molecular Weight: 189.25400 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	340.6ºC at 760 mmHg
Density	1.039 g/cm3
Flash Point	132.6ºC
Exact Mass	189.11500
PSA	20.31000
LogP	2.35480
Refractive Index	1.586

Customs & Trade Information

HS Code	2922399090
Summary	2922399090 other amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-[4-(Dimethylamino)phenyl]but-3-en-2-one?

The CAS number of 4-[4-(Dimethylamino)phenyl]but-3-en-2-one is 5432-53-1.

What are the molecular formula and molecular weight of 4-[4-(Dimethylamino)phenyl]but-3-en-2-one?

4-[4-(Dimethylamino)phenyl]but-3-en-2-one has molecular formula C12H15NO and molecular weight 189.25400 g/mol.

What are the upstream and downstream products of 4-[4-(Dimethylamino)phenyl]but-3-en-2-one?

For 4-[4-(Dimethylamino)phenyl]but-3-en-2-one, Upstream Products: 4-Dimethylaminobenzaldehyde, Pyrrolidine.

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. "4-[4-(Dimethylamino)phenyl]but-3-en-2-one (CAS 5432-53-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1106228-5 (accessed 2026-11-09).

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