Description

2-Iodo-5-Methylbenzenesulfonic Acid is a versatile organosulfur compound featuring both an iodine substituent and a sulfonic acid group on a methylbenzene backbone. This unique structure makes it a valuable synthetic intermediate and building block for advanced chemical synthesis. It is primarily utilized by research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of novel drug candidates.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides, leveraging its reactive iodine site for further functionalization.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized ligands in transition metal catalysis and organocatalysis.
• Material Science Research: Employed in the development of functional polymers, dyes, and advanced organic materials.
• Chemical Derivatization: The sulfonic acid group allows for easy salt formation, while the iodine enables cross-coupling reactions like Suzuki or Sonogashira.
• Custom Synthesis and R&D: A critical reagent for medicinal chemistry and process chemistry research in both academic and industrial laboratories.

Basic Information

Product Name	2-Iodo-5-Methylbenzenesulfonic Acid
CAS No.	139778-27-1
Molecular Formula	C7H7IO3S
Molecular Weight	298.10 g/mol
Synonyms	5-Methyl-2-iodobenzenesulfonic Acid; 2-Iodo-p-toluenesulfonic Acid; 2-Iodo-5-methylbenzenesulphonic Acid; 2-Iodotoluene-5-sulfonic Acid; 5-Methyl-2-iodobenzene-1-sulfonic Acid; 2-Iodo-5-methylphenylsulfonic Acid; Benzenesulfonic acid, 2-iodo-5-methyl-
EINECS	Contact for details

Quality Control

Our 2-Iodo-5-Methylbenzenesulfonic Acid is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of R&D and scale-up applications.

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). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%

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