Description

p-(2,5-Dihydro-2,5-Dioxo-1H-Pyrrol-1-Yl)Benzenesulphonyl Chloride is a high-purity, reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its core value lies in enabling the precise introduction of the N-substituted maleimide-sulfonyl functional group, which is essential for creating molecules with tailored properties. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly those targeting enzymes via sulfonamide linkage.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and insecticides where the maleimide moiety can contribute to biological activity.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for specialty polymers, including photosensitive resins and high-performance coatings.
• Bioconjugation Reagent: Facilitates the labeling and modification of proteins, peptides, and other biomolecules for diagnostic and research applications.
• Material Science Research: Employed in synthesizing organic electronic materials, liquid crystals, and other advanced functional materials.
• Custom Synthesis & Contract Manufacturing: Serves as a starting material for bespoke chemical synthesis services catering to diverse industrial needs.

Basic Information

Product Name	p-(2,5-Dihydro-2,5-Dioxo-1H-Pyrrol-1-Yl)Benzenesulphonyl Chloride
CAS No.	36898-42-7
Molecular Formula	C10H6ClNO4S
Molecular Weight	271.68 g/mol
Synonyms	4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzenesulfonyl chloride; 1-(4-Chlorosulfonylphenyl)maleimide; N-(4-Chlorosulfonylphenyl)maleimide; 4-Maleimidobenzenesulfonyl chloride; p-Maleimidobenzenesulfonyl chloride; 36898-42-7; 4-(2,5-Dioxopyrrol-1-yl)benzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our p-(2,5-Dihydro-2,5-Dioxo-1H-Pyrrol-1-Yl)Benzenesulphonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm

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