Description

4-Methylsulphonylbenzoic Acid is a high-purity organic intermediate featuring a benzoic acid core substituted with a methylsulfonyl group, offering unique electronic and steric properties. This compound is valued for its role as a versatile building block in the synthesis of more complex molecules, particularly in advanced pharmaceutical and agrochemical research. It is essential for chemists and manufacturers in the fine chemical, pharmaceutical, and material science industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly those targeting specific enzyme inhibitors.
• Agrochemical Synthesis: Used in the production of advanced herbicides and pesticides, where the methylsulfonyl moiety can contribute to biological activity.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in catalytic processes and metal-organic frameworks (MOFs).
• Material Science Research: Employed in the synthesis of organic semiconductors, polymers, and other functional materials requiring specific sulfone-containing monomers.
• Fine Chemical Production: Acts as a building block for dyes, pigments, and other specialty chemicals where the acid and sulfone functionalities are required.

Basic Information

Product Name	4-Methylsulphonylbenzoic Acid
CAS No.	4052-30-6
Molecular Formula	C8H8O4S
Molecular Weight	200.21 g/mol
Synonyms	4-(Methylsulfonyl)benzoic Acid; p-(Methylsulfonyl)benzoic Acid; Benzoic acid, 4-(methylsulfonyl)-; 4-Methanesulfonylbenzoic acid; 4-Carboxyphenyl methyl sulfone; Methyl 4-sulfonylbenzoate (acid form); p-Carboxyphenyl methyl sulfone; 4-MSO2BA
EINECS	Contact for details

Quality Control

Our 4-Methylsulphonylbenzoic Acid is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC, NMR, and IR spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 nature, the container must be kept sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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