Description

2-Iodobenzenesulfonic Acid is a versatile organoiodine building block and sulfonic acid derivative, essential for advanced synthetic chemistry. Its unique structure, featuring both an iodine substituent and a sulfonic acid group, makes it a critical intermediate for introducing iodine atoms and modulating solubility in complex molecular architectures. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing active pharmaceutical ingredients (APIs), functional materials, and ligands for catalysis.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of iodinated active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and plant growth regulators that require an iodobenzene core.
• Ligand & Catalyst Preparation: Serves as a precursor for sulfonated ligands used in transition metal catalysis and cross-coupling reactions.
• Material Science: Intermediate in the creation of specialty polymers, dyes, and liquid crystals where sulfonic acid groups impart solubility or ionic character.
• Chemical Research: A valuable reagent for method development in organic synthesis, particularly in halogenation and sulfonation studies.
• Derivatization Agent: Used to modify surfaces or biomolecules via its reactive sulfonic acid group for analytical or functional purposes.

Basic Information

Product Name	2-Iodobenzenesulfonic Acid
CAS No.	63059-25-6
Molecular Formula	C6H5IO3S
Molecular Weight	284.07 g/mol
Synonyms	o-Iodobenzenesulfonic Acid; Benzenesulfonic acid, 2-iodo-; 2-Iodophenylsulfonic Acid; ortho-Iodobenzenesulfonic Acid; 1-Iodo-2-sulfobenzene; 2-Iodobenzene-1-sulfonic Acid
EINECS	Contact for details

Quality Control

Our 2-Iodobenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing batch-specific 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, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	< 20 ppm

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