Description

Toluol-2,4-Disulfonsure CAS NO 121-04-0 is a key aromatic sulfonic acid derivative, primarily used as a versatile intermediate in organic synthesis. Its value lies in its dual sulfonic acid groups, which provide strong acidity and excellent water solubility, making it a crucial building block for more complex molecules. This compound is essential for manufacturers in the fine chemical, pharmaceutical, and dye industries seeking to produce sulfonated derivatives, surfactants, or catalysts.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Dye and Pigment Manufacturing: Used in the production of acid dyes and other colorants due to its sulfonic acid functionality.
• Catalyst and Reagent: Acts as an acidic catalyst in various organic reactions, including esterification and alkylation.
• Surfactant Synthesis: A key starting material for manufacturing anionic surfactants and detergents.
• Chemical Research & Development: Employed in labs for method development and the creation of novel sulfonated compounds.
• Ion Exchange Resins: Can be used in the modification of polymers to create specialized ion exchange materials.

Basic Information

Product Name	Toluol-2,4-Disulfonsure
CAS No.	121-04-0
Molecular Formula	C7H8O6S2
Molecular Weight	252.26 g/mol
Synonyms	2,4-Dimethylbenzenesulfonic Acid; Toluene-2,4-disulfonic Acid; 2,4-Toluenedisulfonic Acid; 4-Methyl-1,3-benzenedisulfonic Acid; 2,4-Disulfotoluene; Toluene-m-disulfonic Acid; TDS Acid; 2,4-TDS
EINECS	204-438-5

Quality Control

Our Toluol-2,4-Disulfonsure is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, impurity profile, and identity confirmation, to ensure it meets exacting standards for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every 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 away from incompatible materials such as strong bases and oxidizing agents. Due to its strong acid nature, containers should be kept tightly sealed to prevent moisture absorption and potential corrosion.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Solubility	Freely soluble in water

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