Description

Benzenesulfonic Acid, 5 - Bromo - 2 - Methoxy - 4 - Methyl is a specialized aromatic sulfonic acid derivative, distinguished by its bromo, methoxy, and methyl substituents. This compound serves as a versatile and high-value intermediate in advanced organic synthesis, enabling the precise construction of complex molecular architectures. It is primarily required by pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a substituted benzenesulfonyl moiety.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for sulfonated dyes and specialty colorants, offering enhanced solubility and color fastness.
• Polymer Chemistry: Employed as a monomer or functionalization agent to introduce sulfonic acid groups into polymers for ion-exchange resins or conductive materials.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and creating novel chemical entities.
• Catalyst and Ligand Preparation: Can be utilized to synthesize metal-organic complexes or organocatalysts for specialized chemical transformations.

Basic Information

Product Name	Benzenesulfonic Acid, 5 - Bromo - 2 - Methoxy - 4 - Methyl
CAS No.	223438-71-9
Molecular Formula	C8H9BrO4S
Molecular Weight	281.13 g/mol
Synonyms	5-Bromo-2-methoxy-4-methylbenzenesulfonic Acid; 2-Methoxy-5-bromo-4-methylbenzenesulfonic Acid; 4-Bromo-5-methoxy-2-methylbenzenesulfonic Acid; 5-Bromo-4-methyl-2-methoxybenzenesulfonic Acid; 2-Methyl-4-bromo-5-methoxybenzenesulfonic Acid; 4-Methyl-5-bromo-2-methoxybenzenesulfonic Acid; Benzenesulfonic acid, 5-bromo-2-methoxy-4-methyl-
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 5 - Bromo - 2 - Methoxy - 4 - Methyl is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing including HPLC, NMR, and titration to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality system is designed to support applications requiring high-purity intermediates for regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and a strong acid/organic solvent; ensure the container is kept tightly sealed to exclude moisture and incompatible materials. Keep away from heat, sparks, open flames, and strong bases.

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
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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