Description

(4-Chlorosulfonylphenoxy)Acetic Acid Methyl Ester is a versatile and reactive organic intermediate, primarily valued for its chlorosulfonyl and ester functional groups. This compound is essential for the synthesis of more complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and advanced agrochemicals. It is a critical building block for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce specific phenoxyacetic acid derivatives into their target compounds.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs and other bioactive molecules.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators featuring phenoxyacetic acid backbones.
• Dye and Pigment Production: Serves as an intermediate for creating sulfonated dyes and specialty colorants.
• Polymer Modification: Employed to introduce functional groups into polymers for enhanced properties.
• Research & Development: A valuable reagent in organic synthesis and medicinal chemistry for constructing novel chemical entities.
• Liquid Crystal and Electronic Material Synthesis: Used in the production of advanced materials for display and electronic applications.

Basic Information

Product Name	(4-Chlorosulfonylphenoxy)Acetic Acid Methyl Ester
CAS No.	56077-78-2
Molecular Formula	C9H9ClO5S
Molecular Weight	264.68 g/mol
Synonyms	Methyl (4-chlorosulfonylphenoxy)acetate; Methyl 2-(4-chlorosulfonylphenoxy)acetate; Acetic acid, 2-(4-chlorosulfonylphenoxy)-, methyl ester; 4-(Chlorosulfonyl)phenoxyacetic acid methyl ester; Methyl (4-chlorosulfonylphenoxy)ethanoate; p-Chlorosulfonylphenoxyacetic acid methyl ester
EINECS	Contact for details

Quality Control

Our (4-Chlorosulfonylphenoxy)Acetic Acid Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your specific R&D or manufacturing requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

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%

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