4-(4-Methoxyphenyl)-3-buten-2-one

Also known as: 4-(4-methoxyphenyl)-3-buten-2-one, 1-(p-methoxyphenyl)-1-buten-3-one, 4-Methoxybenzalacetone, 4-Methoxybenzylideneacetone, Anisalacetone, p-Anisalacetone, p-Methoxybenzalacetone, Methoxybenzalacetone, anisylideneacetone, p-Anisylideneacetone, 4-Methoxystyrylmethyl ketone, 4-(p-methoxyphenyl)-3-buten-2-one, 4-(p-methoxyphenyl)-3-butene-2-one, 4-(4-methoxyphenyl)but-3-en-2-one

4-(4-Methoxyphenyl)-3-buten-2-one (CAS 943-88-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H12O2 and a molecular weight of 176.21200 g/mol. Key properties include a melting point of 75-77ºC, a boiling point of 319.8ºC at 760mmHg, a density of 1.048g/cm3 and a flash point of 148.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 943-88-4
Jingsj CID: J-1175187-4
Molecular Formula: C₁₁H₁₂O₂
Molecular Weight: 176.21200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	75-77ºC
Boiling Point	319.8ºC at 760mmHg
Density	1.048g/cm3
Flash Point	148.3ºC
Exact Mass	176.08400
PSA	26.30000
LogP	2.29740
Refractive Index	1.549

Customs & Trade Information

HS Code	2914509090
Summary	HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-(4-Methoxyphenyl)-3-buten-2-one?

The CAS number of 4-(4-Methoxyphenyl)-3-buten-2-one is 943-88-4.

What are the molecular formula and molecular weight of 4-(4-Methoxyphenyl)-3-buten-2-one?

4-(4-Methoxyphenyl)-3-buten-2-one has molecular formula C11H12O2 and molecular weight 176.21200 g/mol.

What are the upstream and downstream products of 4-(4-Methoxyphenyl)-3-buten-2-one?

For 4-(4-Methoxyphenyl)-3-buten-2-one, Upstream Products: 4-Methoxybenzaldehyde, 4-Iodoanisole, Ethyl acetoacetate; Downstream Products: 4-Methoxycinnamic acid, 3-(4-Methoxyphenyl)-5-methyl-1H-pyrazole, 4-(4-Methoxyphenyl)-2-butanone.

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-Methoxyphenyl)-3-buten-2-one (CAS 943-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1175187-4 (accessed 2026-11-09).

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