Description

[4-(Chlorosulfonyl)Phenoxy]Acetic Acid is a versatile and reactive organic intermediate featuring both a chlorosulfonyl and a carboxylic acid functional group. This bifunctional nature makes it a critical building block for synthesizing more complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is essential for researchers and manufacturers developing sulfonamide-based active ingredients, specialty dyes, and advanced polymer modifiers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide drugs, including diuretics, carbonic anhydrase inhibitors, and anti-glaucoma agents.
• Agrochemical Synthesis: Used in the production of herbicides and fungicides that utilize the sulfonamide moiety for biological activity.
• Dye and Pigment Manufacturing: Serves as a reactive intermediate for creating sulfonated azo dyes and other colorants with enhanced solubility and fastness properties.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, improving characteristics like hydrophilicity, ion-exchange capacity, or adhesion.
• Chemical Research & Development: A valuable reagent for organic synthesis, particularly in constructing complex molecules requiring selective sulfonylation or further derivatization of the acetic acid chain.
• Ligand and Chelating Agent Preparation: Used to synthesize specialized ligands for metal catalysis or extraction processes.

Basic Information

Product Name	[4-(Chlorosulfonyl)Phenoxy]Acetic Acid
CAS No.	17641-39-3
Molecular Formula	C8H7ClO5S
Molecular Weight	250.66 g/mol
Synonyms	4-(Chlorosulfonyl)phenoxyacetic Acid; (4-Chlorosulfonylphenoxy)acetic Acid; p-(Chlorosulfonyl)phenoxyacetic Acid; 2-[4-(Chlorosulfonyl)phenoxy]acetic Acid; Acetic Acid, 2-[4-(chlorosulfonyl)phenoxy]-; NSC 403714; 4-CSPAA
EINECS	Contact for details

Quality Control

Our [4-(Chlorosulfonyl)Phenoxy]Acetic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets exacting standards for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent batch-to-batch quality.

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). This compound is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	142 - 147 °C
Loss on Drying	≤ 1.0 %
Heavy Metals	≤ 20 ppm

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