(2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid

4-(4-甲氧基苯胺)-4-氧丁-2-烯酸

Also known as: 4-(4-methoxyanilino)-4-oxobut-2-enoic acid, 2-Butenoic acid, 4-[(4-methoxyphenyl)amino]-4-oxo-, (E)-3-(4-methoxyphenylcarbamoyl)acrylic acid, 3-(4-methoxy-phenylcarbamoyl)-acrylic acid, 4'-METHOXYMALEANILIC ACID, Maleinsaeure-mono-4-methoxy-anilid, Maleinsaeure-mono-p-anisidid, IFLAB-BB F0777-0797, TIMTEC-BB SBB000600, MFCD00663030

(2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid (CAS 37902-60-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H11NO4 and a molecular weight of 221.209 g/mol. It is also known as 4-(4-methoxyanilino)-4-oxobut-2-enoic acid, 2-Butenoic acid, 4-[(4-methoxyphenyl)amino]-4-oxo- and (E)-3-(4-methoxyphenylcarbamoyl)acrylic acid. Key properties include a melting point of 190ºC, a boiling point of 473.0±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 239.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 37902-60-6
Jingsj CID: J-1479984-2
Molecular Formula: C₁₁H₁₁NO₄
Chinese Name: 4-(4-甲氧基苯胺)-4-氧丁-2-烯酸
Molecular Weight: 221.209 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	190ºC
Boiling Point	473.0±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	239.9±28.7 °C

Frequently Asked Questions

What is the CAS number of (2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid?

The CAS number of (2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid is 37902-60-6.

What are the molecular formula and molecular weight of (2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid?

(2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid has molecular formula C11H11NO4 and molecular weight 221.209 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(2E)-4-[(4-methoxyphenyl)amino]-4-oxobut-2-enoic acid (CAS 37902-60-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1479984-2 (accessed 2026-10-23).

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