Description

4-sec-Butylbenzenesulfonyl Chloride is a versatile and reactive organosulfur compound primarily used as a key sulfonylation reagent in organic synthesis. Its value lies in its ability to introduce the 4-sec-butylbenzenesulfonyl group, a useful moiety for modifying molecular properties and creating sulfonamide derivatives. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it serves as a building block for active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for creating sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents that incorporate sulfonyl functional groups.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of specialty dyes and colorants.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains, altering their physical and chemical properties.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D in exploring new synthetic pathways and creating novel sulfonated compounds.
• Liquid Crystal Materials: Can be used in the synthesis of components for liquid crystal displays (LCDs).

Basic Information

Product Name	4-sec-Butylbenzenesulfonyl Chloride
CAS No.	56609-83-7
Molecular Formula	C₁₀H₁₃ClO₂S
Molecular Weight	232.72 g/mol
Synonyms	4-(1-Methylpropyl)benzenesulfonyl chloride; p-sec-Butylbenzenesulfonyl chloride; Benzenesulfonyl chloride, 4-(1-methylpropyl)-; 1-Methylpropylbenzene-4-sulfonyl chloride; (2-Butyl)benzenesulfonyl chloride; 4-(sec-Butyl)benzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-sec-Butylbenzenesulfonyl Chloride is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for fine chemical intermediates. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent decomposition. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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