Description

5-Chlorosulfonyl-2-Methoxybenzoicacid CAS NO 89469-32-9 is a versatile and highly functionalized aromatic sulfonyl chloride derivative. This compound serves as a critical synthetic intermediate, enabling the introduction of both a sulfonyl chloride moiety and a carboxylic acid group into target molecules. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for constructing complex active ingredients. Its bifunctional nature allows for sequential derivatization, making it a valuable building block for creating sulfonamides, esters, and amides.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those requiring sulfonamide or benzoic acid ester/amide pharmacophores.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides where the sulfonyl group enhances biological activity.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for creating specialized azo dyes and high-performance pigments.
• Polymer Chemistry: Can be utilized to synthesize functional monomers or as a modifying agent for polymers to introduce specific reactive sites.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new organic reactions and synthesizing complex molecular architectures.
• Liquid Crystal and OLED Material Development: Potential intermediate for creating advanced electronic materials requiring precise molecular engineering.

Basic Information

Product Name	5-Chlorosulfonyl-2-Methoxybenzoicacid
CAS No.	89469-32-9
Molecular Formula	C8H7ClO5S
Molecular Weight	250.65 g/mol
Synonyms	2-Methoxy-5-(chlorosulfonyl)benzoic acid; 5-(Chlorosulfonyl)-2-methoxybenzoic acid; 2-Methoxy-5-sulfonylchloridebenzoic acid; o-Anisic acid, 5-(chlorosulfonyl)-; Benzoic acid, 5-(chlorosulfonyl)-2-methoxy-; 5-Chlorosulfonyl-o-anisic acid
EINECS	Contact for details

Quality Control

Our production of 5-Chlorosulfonyl-2-Methoxybenzoicacid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and titration for functional group analysis. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications. Our quality system is designed to meet the exacting standards required for fine chemical and pharmaceutical intermediate applications.

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). This compound is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent hydrolysis. Keep away from strong bases, amines, and alcohols.

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	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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