Description

Benzenesulfonyl Chloride, 4-(2-Methylpropoxy)- is a specialized organosulfur compound featuring a sulfonyl chloride functional group activated by an alkoxy substituent. This structure makes it a valuable versatile intermediate for synthesizing sulfonamides and other functionalized aromatic systems. It is primarily sought by pharmaceutical, agrochemical, and specialty chemical manufacturers for research and production processes requiring precise molecular modification.

Application

• Pharmaceutical Intermediate: Key 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 insecticides where the sulfonyl moiety is integral to biological activity.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for producing sulfonated dyes and specialty colorants.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for subsequent functionalization or cross-linking.
• Chemical Research & Development: A crucial reagent in organic synthesis labs for constructing complex molecules and exploring new reaction pathways.
• Liquid Crystal and Electronic Material Precursor: Used in the synthesis of advanced materials requiring specific aromatic sulfone structures.

Basic Information

Product Name	Benzenesulfonyl Chloride, 4-(2-Methylpropoxy)-
CAS No.	1138-54-1
Molecular Formula	C10H13ClO3S
Molecular Weight	248.73 g/mol
Synonyms	4-(Isobutoxy)benzenesulfonyl chloride; p-Isobutoxybenzenesulfonyl chloride; 4-Isobutoxybenzene-1-sulfonyl chloride; Benzenesulfonyl chloride, p-isobutoxy-; 1-(Isobutoxy)-4-(chlorosulfonyl)benzene; Isobutyl 4-(chlorosulfonyl)phenyl ether
EINECS	214-524-6

Quality Control

Our production of Benzenesulfonyl Chloride, 4-(2-Methylpropoxy)- adheres to stringent quality protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We operate under a robust Quality Management System to guarantee traceability and reliability for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; keep the container tightly sealed and store away from incompatible materials. Keep under an inert atmosphere for long-term storage to maximize shelf life.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density	~1.25 g/cm³

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