Description

4-Ureido-Benzenesulfonyl Chloride CAS NO 40685-78-7 is a specialized aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the reactive sulfonyl chloride group and the ureido functionality, enabling the construction of complex molecules with specific biological or material properties. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including diuretics, carbonic anhydrase inhibitors, and antiviral agents.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and plant growth regulators that incorporate sulfonylurea or sulfonamide motifs.
• Dyestuff and Pigment Production: Acts as an intermediate for manufacturing azo dyes and other colorants requiring sulfonated aromatic structures.
• Polymer Chemistry: Employed in the production of specialty polymers and resins, where it can introduce cross-linking sites or functional groups.
• Bioconjugation and Probe Development: Useful in biochemical research for labeling proteins or other biomolecules due to its reactivity with amines.
• Chemical Research & Development: A versatile reagent for exploring new synthetic pathways and creating compound libraries for screening.

Basic Information

Product Name	4-Ureido-Benzenesulfonyl Chloride
CAS No.	40685-78-7
Molecular Formula	C7H7ClN2O3S
Molecular Weight	234.66 g/mol
Synonyms	4-Ureidobenzenesulfonyl chloride; p-Ureidobenzenesulfonyl chloride; 4-(Aminocarbonylamino)benzenesulfonyl chloride; 1-(4-Chlorosulfonylphenyl)urea; Urea, N-(4-chlorosulfonylphenyl)-; Benzenesulfonyl chloride, 4-ureido-; 4-Carbamoylaminobenzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Ureido-Benzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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 to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases, amines, 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	≤ 1.0%
Heavy Metals	≤ 20 ppm

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