Description

2,4-Xylenesulfonic Acid is a versatile organic sulfonic acid derivative, valued for its strong acidity and solubility in organic media. This compound serves as a highly effective acid catalyst and intermediate in a wide range of industrial synthesis and formulation processes. It is essential for manufacturers in the chemical, pharmaceutical, and agrochemical sectors seeking a reliable and efficient proton source for reactions where mineral acids are unsuitable.

Application

• Chemical Synthesis Catalyst: Acts as a powerful acid catalyst in esterification, alkylation, and condensation reactions, particularly in non-aqueous systems.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and fine chemicals requiring selective sulfonation or acid-catalyzed steps.
• Polymer & Resin Production: Employed as a curing agent or catalyst in the production of phenolic resins, epoxy hardeners, and other specialty polymers.
• Dye & Pigment Manufacturing: Facilitates sulfonation and other key reactions in the synthesis of dyes, pigments, and optical brighteners.
• Electroplating Additive: Functions as a brightening agent and conductivity enhancer in electroplating baths.
• Surfactant & Detergent Precursor: Serves as a key raw material for producing specialized surfactants and industrial cleaning formulations.

Basic Information

Product Name	2,4-Xylenesulfonic Acid
CAS No.	25321-41-9
Molecular Formula	C8H10O3S
Molecular Weight	186.23 g/mol
Synonyms	2,4-Dimethylbenzenesulfonic Acid; 2,4-Dimethylphenylsulfonic Acid; Xylenesulfonic Acid, 2,4- isomer; p-Xylene-2-sulfonic Acid; 2,4-XSA; 2,4-Xylolsulfonsäure (German); Acide 2,4-xylènesulfonique (French)
EINECS	246-846-1

Quality Control

Our 2,4-Xylenesulfonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your requirements.

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 tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or lumps
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
Sulfate Ash	≤ 0.5 %
Melting Point	90 - 95 °C

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