Description

4-(n-Butoxy)Benzenesulfonyl Chloride is a versatile sulfonyl chloride derivative, a key reactive intermediate in organic synthesis. Its primary value lies in its ability to act as a sulfonylation agent, facilitating the introduction of the 4-butoxybenzenesulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to create sulfonamides and other functionalized compounds.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing active pharmaceutical ingredients (APIs), particularly those containing sulfonamide functional groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the sulfonyl group imparts specific biological activity.
• Dye and Pigment Manufacturing: Serves as a precursor for sulfonated dyes and specialty colorants.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for subsequent functionalization or to alter material properties.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and creating novel chemical entities.
• Liquid Crystal Materials: Can be used in the synthesis of intermediates for liquid crystal displays (LCDs).

Basic Information

Product Name	4-(n-Butoxy)Benzenesulfonyl Chloride
CAS No.	1138-56-3
Molecular Formula	C10H13ClO3S
Molecular Weight	248.73 g/mol
Synonyms	p-Butoxybenzenesulfonyl chloride; 4-Butoxybenzenesulfonyl chloride; 1-Butoxy-4-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 4-butoxy-; 4-n-Butoxybenzenesulfonyl Chloride; 4-Butoxybenzene-1-sulfonyl chloride
EINECS	214-516-9

Quality Control

Our 4-(n-Butoxy)Benzenesulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 hydrolysis. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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