Description

Description

5-Nitro-o-toluenesulfonic acid (CAS No. 121-03-9) is a high-purity sulfonic acid derivative with the molecular formula C₇H₇NO₅S. This compound, also known by its IUPAC name 2-methyl-5-nitrobenzenesulfonic acid, is a versatile organic intermediate widely used in chemical synthesis and industrial applications. Its structure features a nitro group and a sulfonic acid group on a toluene backbone, making it valuable for electrophilic substitution reactions and as a precursor for dyes, pharmaceuticals, and agrochemicals.

Our product is rigorously tested for purity, stability, and consistency, ensuring optimal performance in research and manufacturing processes. It is supplied as a fine crystalline powder with excellent solubility in polar solvents such as water, ethanol, and dimethyl sulfoxide (DMSO). Proper storage in a cool, dry place is recommended to maintain its integrity.

Applications include use as a sulfonating agent, catalyst, or intermediate in organic synthesis. Suitable for researchers and industrial chemists seeking reliable and high-quality reagents for advanced chemical transformations.

Application

5-Nitro-o-toluenesulfonic acid is primarily used as a key intermediate in the synthesis of dyes, pigments, and pharmaceuticals due to its reactive nitro and sulfonic acid functional groups. It serves as a sulfonating agent in organic reactions and can act as a catalyst or co-catalyst in esterification and condensation processes. Researchers also utilize this compound in the development of specialty chemicals and agrochemicals, leveraging its electrophilic properties for functionalization of aromatic systems.

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