Description

4-Chlorobenzene-Sulfonmethyl-Ester is a specialized organic sulfonate ester, a key chemical intermediate in advanced synthesis. This compound matters for its role in introducing the sulfonmethyl ester functional group, which is crucial for modifying reactivity and solubility profiles in target molecules. Industries that require it include pharmaceutical research for prodrug development, agrochemical manufacturing for creating novel active ingredients, and specialty chemical synthesis for dyes and polymer modifiers.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where a sulfonate ester moiety is required for metabolic activation or improved bioavailability.
• Agrochemical Synthesis: Serves as a key building block in the production of herbicides, fungicides, and insecticides, enabling the introduction of the chlorobenzene-sulfonate group.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of sulfonated dyes and colorants, enhancing water solubility and fiber affinity.
• Polymer Modification: Employed to introduce sulfonate ester groups into polymer chains, altering properties like hydrophilicity, ion-exchange capacity, or adhesion.
• Organic Synthesis Reagent: Utilized as an alkylating agent or a protecting group in complex multi-step synthetic routes for fine chemicals.
• Research & Development: Critical for academic and industrial R&D in medicinal chemistry and material science for exploring new molecular entities.

Basic Information

Product Name	4-Chlorobenzene-Sulfonmethyl-Ester
CAS No.	15481-45-5
Molecular Formula	C7H7ClO3S
Molecular Weight	206.65 g/mol
Synonyms	Methyl 4-Chlorobenzenesulfonate; p-Chlorobenzenesulfonic Acid Methyl Ester; 4-Chlorobenzenesulfonic Acid Methyl Ester; Methyl p-Chlorobenzenesulfonate; Benzenesulfonic Acid, 4-Chloro-, Methyl Ester; NSC 403119; Methyl 4-Chlorophenyl Sulfonate
EINECS	Contact for details

Quality Control

Our 4-Chlorobenzene-Sulfonmethyl-Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible materials such as strong bases and oxidizing agents. The container must be kept tightly closed in a dry environment to minimize moisture exposure.

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%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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