Description

2-(Chlorosulfonyl)-4-Methoxybenzoic Acid Methyl Ester is a versatile and high-purity chemical intermediate essential for advanced organic synthesis. Its core value lies in its reactive chlorosulfonyl and ester functional groups, enabling precise molecular construction in complex chemical processes. This compound is critically needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for developing active ingredients and novel compounds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for synthesizing specialized dyes and colorants.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers and resins.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and process development in laboratory settings.
• Fine Chemical Production: Employed in the multi-step synthesis of complex organic molecules for various industrial applications.

Basic Information

Product Name	2-(Chlorosulfonyl)-4-Methoxybenzoic Acid Methyl Ester
CAS No.	108318-75-8
Molecular Formula	C9H9ClO5S
Molecular Weight	264.68 g/mol
Synonyms	Methyl 2-(Chlorosulfonyl)-4-methoxybenzoate; 4-Methoxy-2-(chlorosulfonyl)benzoic Acid Methyl Ester; Benzoic acid, 2-(chlorosulfonyl)-4-methoxy-, methyl ester; Methyl 4-methoxy-2-(chlorosulfonyl)benzoate
EINECS	Contact for details

Quality Control

Our 2-(Chlorosulfonyl)-4-Methoxybenzoic Acid Methyl Ester is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 sealed under anhydrous conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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