(E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid

Also known as: (2E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid, (2E)-3-(4-ethoxy-3-methoxyphenyl)prop-2-enoic acid, (E)-3-(4-Ethoxy-3-methoxyphenyl)propenoic acid, (E)-3-(4-ethoxy-3-methoxy-phenyl)prop-2-enoic acid, (E)-3-(4-ethoxy-3-methoxyphenyl)prop-2-enoic acid, 2-Propenoic acid,3-(4-ethoxy-3-methoxyphenyl)-,(E)-, 3-(4-ethoxy-3-methoxy-phenyl)acrylic acid, 3-(4-ethoxy-3-methoxyphenyl)prop-2-enoic acid, 4-Ethoxy-3-Methoxycinnamic Acid

(E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid (CAS 144878-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14O4 and a molecular weight of 222.23700 g/mol. Key properties include a boiling point of 378.5ºC at 760 mmHg, a density of 1.172g/cm3 and a flash point of 145.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 144878-40-0
Jingsj CID: J-1074780-5
Molecular Formula: C₁₂H₁₄O₄
Molecular Weight: 222.23700 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	378.5ºC at 760 mmHg
Density	1.172g/cm3
Flash Point	145.1ºC
Exact Mass	222.08900
PSA	55.76000
LogP	2.19170
Vapor Pressure	2.1E-06mmHg at 25°C
Refractive Index	1.564

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid?

The CAS number of (E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid is 144878-40-0.

What are the molecular formula and molecular weight of (E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid?

(E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid has molecular formula C12H14O4 and molecular weight 222.23700 g/mol.

What are the upstream and downstream products of (E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid?

For (E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid, Upstream Products: Malonic acid, 4-Ethoxy-3-methoxybenzaldehyde, Vanillin.

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. "(E)-3-(4-Ethoxy-3-methoxyphenyl)acrylic acid (CAS 144878-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1074780-5 (accessed 2026-11-09).

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