Description

4-Chlorotoluene-3-Sulphonic Acid is a versatile aromatic sulfonic acid derivative that serves as a critical building block in advanced organic synthesis. Its value lies in its dual functional groups, which enable precise chemical modifications for creating high-value intermediates. This compound is essential for manufacturers in the agrochemical, pharmaceutical, and specialty dye industries seeking to develop new active ingredients and functional materials.

Application

• Agrochemical Intermediate: Key precursor in the synthesis of modern herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block for creating sulfonamide-based active pharmaceutical ingredients (APIs) and other therapeutic compounds.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of azo dyes and other complex colorants.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Research & Development: A valuable reagent in organic chemistry labs for method development and creating novel chemical entities.
• Surfactant and Detergent Industry: Can be used in the synthesis of specialized anionic surfactants.

Basic Information

Product Name	4-Chlorotoluene-3-Sulphonic Acid
CAS No.	56919-12-1
Molecular Formula	C7H7ClO3S
Molecular Weight	206.65 g/mol
Synonyms	3-Sulfo-4-chlorotoluene; 4-Chloro-3-methylbenzenesulfonic Acid; 4-Chloro-m-toluenesulfonic Acid; 2-Chloro-5-methylbenzenesulfonic Acid; 4-Chloro-3-toluenesulfonic Acid; p-Chloro-m-toluenesulfonic Acid; 56919-12-1; 4-Chlorotoluene-3-sulfonic acid
EINECS	Contact for details

Quality Control

Our 4-Chlorotoluene-3-Sulphonic Acid is manufactured under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and consistency.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.