N-(4-Carboxy-3-hydroxyphenyl)maleimide

N-(4-羧基-3-羟基苯基)马来酰亚胺

Also known as: 4-Maleimidosalicylic acid, 4-Maleimidylsalicylic acid, 2-Hydroxy-4-(2,5-dioxo-3-pyrroline-1-yl)benzoic acid, 4-(2,5-dioxopyrrol-1-yl)-2-hydroxybenzoic acid, 4-[(2,5-Dihydro-2,5-dioxo-1H-pyrrol)-1-yl]-2-hydroxybenzoic acid, Benzoic acid, 4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-2-hydroxy-, M 84, NSC 59375, p-(Maleimide-N-yl)-o-hydroxybenzoic acid, Salicylic acid, 4-maleimido-, 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-2-hydroxybenzoic acid

N-(4-Carboxy-3-hydroxyphenyl)maleimide (CAS 19232-43-0) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H7NO5 and a molecular weight of 233.18 g/mol. It is also known as 4-Maleimidosalicylic acid, 4-Maleimidylsalicylic acid and 2-Hydroxy-4-(2,5-dioxo-3-pyrroline-1-yl)benzoic acid. Key properties include a boiling point of 505.1ºC at 760mmHg, a density of 1.651g/cm3 and a flash point of 259.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19232-43-0
Jingsj CID: J-44452-9
Molecular Formula: C₁₁H₇NO₅
Chinese Name: N-(4-羧基-3-羟基苯基)马来酰亚胺
Molecular Weight: 233.18 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	505.1ºC at 760mmHg
Density	1.651g/cm3
Flash Point	259.3ºC
Exact Mass	233.03200
PSA	94.91000
LogP	0.58480
Vapor Pressure	5.06E-11mmHg at 25°C
Refractive Index	1.709

Activity & Biological Data

Additional Information	[1]. B M Freed, et al. Inhibition of interleukin-2 production in the human T cell line JURKAT by nonpolar maleimides. Toxicol Appl Pharmacol. 1991 Jan;107(1):173-82.

Customs & Trade Information

HS Code	2925190090
Summary	2925190090 other imides and their derivatives; 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 N-(4-Carboxy-3-hydroxyphenyl)maleimide?

The CAS number of N-(4-Carboxy-3-hydroxyphenyl)maleimide is 19232-43-0.

What are the molecular formula and molecular weight of N-(4-Carboxy-3-hydroxyphenyl)maleimide?

N-(4-Carboxy-3-hydroxyphenyl)maleimide has molecular formula C11H7NO5 and molecular weight 233.18 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. "N-(4-Carboxy-3-hydroxyphenyl)maleimide (CAS 19232-43-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44452-9 (accessed 2026-10-28).

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