Description

n-(4-Carboxy-3-Hydroxyphenyl)Maleimide is a high-purity, functionalized maleimide derivative characterized by its phenolic hydroxyl and carboxylic acid groups. This bifunctional structure makes it a versatile and valuable chemical intermediate for synthesizing advanced polymers and specialty compounds. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and advanced materials sectors for creating cross-linked polymers, photoactive resins, and bioactive molecule conjugates.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, leveraging its reactive maleimide group for conjugation.
• Polymer Cross-linking Agent: Serves as a key monomer or cross-linker in the production of heat-resistant, high-performance polymers and epoxy resins.
• Photoinitiator & Photoresist Component: Incorporated into formulations for UV-curable coatings, inks, and photoresists due to its light-sensitive properties.
• Agrochemical Synthesis: Acts as a building block for creating novel herbicides, fungicides, and plant growth regulators.
• Bioconjugation & Protein Labeling: Utilized in biochemical research for modifying proteins, peptides, and antibodies via Michael addition chemistry.
• Advanced Material Research: Employed in developing functionalized surfaces, dendritic polymers, and smart materials for industrial and electronic applications.

Basic Information

Product Name	n-(4-Carboxy-3-Hydroxyphenyl)Maleimide
CAS No.	19232-43-0
Molecular Formula	C11H7NO5
Molecular Weight	233.18 g/mol
Synonyms	4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-2-hydroxybenzoic acid; 1-(4-Carboxy-3-hydroxyphenyl)-1H-pyrrole-2,5-dione; 3-Hydroxy-4-(maleimid)benzoic acid; N-(3-Hydroxy-4-carboxyphenyl)maleimide; Maleimide, N-(4-carboxy-3-hydroxyphenyl)-; 4-Maleimidobenzoic acid, 3-hydroxy-; 4-(Maleimido)salicylic acid
EINECS	Contact for details

Quality Control

Our n-(4-Carboxy-3-Hydroxyphenyl)Maleimide is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes data from HPLC, NMR, and IR spectroscopy. Our quality commitment ensures the material meets the stringent requirements for research and industrial synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and may be hygroscopic; therefore, containers should be kept sealed under an inert atmosphere when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.