Description

p-(Dimethylamino)Benzenesulfonyl Chloride is a versatile sulfonyl chloride derivative, primarily used as a key synthetic intermediate in the production of dyes, pharmaceuticals, and functional materials. Its core value proposition lies in its reactive sulfonyl chloride group, which readily undergoes nucleophilic substitution to form sulfonamides and sulfonate esters, enabling the introduction of the p-dimethylaminophenylsulfonyl moiety. This compound is essential for manufacturers and R&D chemists in the fine chemical, pharmaceutical, and agrochemical industries who require a reliable, high-purity building block for complex synthesis.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those containing sulfonamide functional groups.
• Dye and Pigment Manufacturing: Serves as a key intermediate for producing sulfonated azo dyes and other colorants, imparting specific solubility and color properties.
• Agrochemical Synthesis: Used in the development of herbicides, fungicides, and insecticides where the sulfonyl group is a critical pharmacophore.
• Polymer and Material Science: Acts as a modifying agent or cross-linking monomer for creating specialty polymers with tailored properties.
• Chemical Research & Development: Employed as a versatile reagent for introducing the sulfonyl protecting group or for constructing complex molecular architectures in organic synthesis.
• Photoinitiator and UV Absorber Precursor: Utilized in the synthesis of compounds for photopolymerization and light-stabilizing applications.

Basic Information

Product Name	p-(Dimethylamino)Benzenesulfonyl Chloride
CAS No.	19715-49-2
Molecular Formula	C8H10ClNO2S
Molecular Weight	219.69 g/mol
Synonyms	4-(Dimethylamino)benzenesulfonyl chloride; N,N-Dimethyl-4-sulfobenzenesulfonyl chloride; p-(N,N-Dimethylamino)benzenesulfonyl chloride; DMABS-Cl; 4-(Dimethylamino)phenylsulfonyl chloride; p-Dimethylaminophenylsulfonyl chloride; N,N-Dimethyl-p-aminobenzenesulfonyl chloride
EINECS	243-261-8

Quality Control

Our p-(Dimethylamino)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 exacting standards for use in sensitive applications like pharmaceutical synthesis. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

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 decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	128°C - 132°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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