Description

p-Toluenesulfonic Acid 2,4-Dichlorophenyl Ester is a specialized organic sulfonate ester, a key intermediate in fine chemical synthesis. This compound matters for its role as an effective alkylating agent and protecting group reagent, enabling precise chemical transformations. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and advanced material sectors for building complex molecular architectures.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly where selective sulfonylation or introduction of the 2,4-dichlorophenyl moiety is required.
• Agrochemical Synthesis: Serves as a key building block in the production of herbicides, fungicides, and other crop protection agents.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers and resins with specific thermal or chemical resistance properties.
• Dye and Pigment Manufacturing: Employed in the synthesis of complex organic dyes and colorants.
• Research & Development: A valuable reagent in organic chemistry laboratories for method development and novel compound synthesis.
• Chemical Protecting Group: Utilized to temporarily protect functional groups during multi-step synthetic sequences.

Basic Information

Product Name	p-Toluenesulfonic Acid 2,4-Dichlorophenyl Ester
CAS No.	5328-03-0
Molecular Formula	C13H10Cl2O3S
Molecular Weight	317.19 g/mol
Synonyms	2,4-Dichlorophenyl p-Toluenesulfonate; 4-Methylbenzenesulfonic Acid 2,4-Dichlorophenyl Ester; Tosic Acid 2,4-Dichlorophenyl Ester; p-Toluenesulfonyl Chloride 2,4-Dichlorophenol Ester; 2,4-Dichlorophenyl Tosylate; TsO-2,4-DCPh; 4-Toluenesulfonic Acid 2,4-Dichlorophenyl Ester
EINECS	226-189-6

Quality Control

Our p-Toluenesulfonic Acid 2,4-Dichlorophenyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all relevant specifications are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

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%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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