Description

3,5-Dibromo-4-Methyl-Benzenesulfonic Acid is a halogenated benzenesulfonic acid derivative characterized by its strong acidic nature and utility as a versatile synthetic intermediate. This compound matters for its role in introducing both sulfonic acid and bromine functional groups, which are critical for modifying the physical and chemical properties of target molecules. It is primarily needed by research chemists and process development teams in the pharmaceutical and agrochemical industries for applications such as catalyst synthesis, ligand preparation, and the development of specialty dyes or pigments.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing sulfonate moieties that enhance solubility.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators where the bromine atoms act as leaving groups or modify bioactivity.
• Catalyst & Ligand Preparation: Employed in the creation of specialized metal-organic catalysts and ligands for organic transformation reactions.
• Dye & Pigment Manufacturing: Acts as a precursor or sulfonating agent in the production of colorants and high-performance pigments.
• Polymer Modification: Utilized to functionalize polymers, imparting sulfonic acid groups to alter hydrophilicity, ion-exchange capacity, or adhesion properties.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organic synthesis pathways and creating novel chemical entities.

Basic Information

Product Name	3,5-Dibromo-4-Methyl-Benzenesulfonic Acid
CAS No.	755722-58-8
Molecular Formula	C7H6Br2O3S
Molecular Weight	329.99 g/mol
Synonyms	4-Methyl-3,5-dibromobenzenesulfonic Acid; Benzenesulfonic acid, 3,5-dibromo-4-methyl-; 3,5-Dibromo-p-toluenesulfonic Acid; 3,5-Dibromo-4-methylbenzenesulphonic Acid; 755722-58-8; 4-Methyl-3,5-dibromobenzene-1-sulfonic acid
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is characterized to confirm identity, purity, and consistency. While this is a specialty research chemical, we adhere to strict in-house quality protocols. Certificates of Analysis (COA) detailing key parameters are available upon request 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 strong acid nature, keep away from incompatible materials such as bases, reducing agents, and reactive metals. The container must be kept tightly sealed to prevent absorption of moisture from the air.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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