4-(4-chloroanilino)-4-oxobut-2-enoic acid

4-[(4-氯苯基)氨基]-4-氧代-2-丁烯酸

Also known as: 2-Butenoic acid, 4-[(4-chlorophenyl)amino]-4-oxo-, 4'-Chloromaleanilic acid, 4'-Chloromaleanilinsaeure, 4-Oxo-4-(4-chlorophenylamino)-2-butenoic acid, TIMTEC-BB SBB000655

4-(4-chloroanilino)-4-oxobut-2-enoic acid (CAS 306935-74-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8ClNO3 and a molecular weight of 225.62800 g/mol. It is also known as 2-Butenoic acid, 4-[(4-chlorophenyl)amino]-4-oxo-, 4'-Chloromaleanilic acid and 4'-Chloromaleanilinsaeure. Key properties include a melting point of 200ºC, a boiling point of 466.2ºC at 760mmHg, a density of 1.448g/cm3 and a flash point of 235.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 306935-74-0
Jingsj CID: J-1004191-6
Molecular Formula: C₁₀H₈ClNO₃
Chinese Name: 4-[(4-氯苯基)氨基]-4-氧代-2-丁烯酸
Molecular Weight: 225.62800 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	200ºC
Boiling Point	466.2ºC at 760mmHg
Density	1.448g/cm3
Flash Point	235.7ºC
Exact Mass	225.01900
PSA	66.40000
LogP	1.99230
Refractive Index	1.642

Customs & Trade Information

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. 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 4-(4-chloroanilino)-4-oxobut-2-enoic acid?

The CAS number of 4-(4-chloroanilino)-4-oxobut-2-enoic acid is 306935-74-0.

What are the molecular formula and molecular weight of 4-(4-chloroanilino)-4-oxobut-2-enoic acid?

4-(4-chloroanilino)-4-oxobut-2-enoic acid has molecular formula C10H8ClNO3 and molecular weight 225.62800 g/mol.

What are the upstream and downstream products of 4-(4-chloroanilino)-4-oxobut-2-enoic acid?

For 4-(4-chloroanilino)-4-oxobut-2-enoic acid, Upstream Products: Maleic anhydride, 4-Chloroaniline; Downstream Products: 1-(4-Chlorophenyl)-1H-pyrrole-2,5-dione.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(4-chloroanilino)-4-oxobut-2-enoic acid (CAS 306935-74-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1004191-6 (accessed 2026-10-28).

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