5-Hydroxytoluene-2-sulphonic acid, with the CAS number 7134-05-6, is an aromatic sulfonic acid derivative characterized by the presence of both hydroxyl and sulfonic acid functional groups attached to a toluene ring. This compound typically appears as a white to light yellow crystalline solid and is soluble in water due to the polar nature of the sulfonic acid group. It exhibits acidic properties, which can influence its reactivity and interactions in various chemical environments. The hydroxyl group contributes to its potential as a hydrogen bond donor, enhancing its solubility and reactivity in organic synthesis. This compound is often utilized in the synthesis of dyes, pharmaceuticals, and as an intermediate in organic reactions. Its sulfonic acid functionality also makes it useful in applications requiring strong acid characteristics, such as catalysis and as a reagent in various chemical processes. Safety precautions should be observed when handling this substance, as with many chemical compounds, due to potential irritant properties.

5-hydroxytoluene-2-sulphonic acid

7134-05-6: o-Toluenesulfonic acid, 4-hydroxy-, Benzenesulfonic acid, 4-hydroxy-2-methyl-, 4-Hydroxy-2-Methylbenzenesulfonic Acid, 5-Hydroxytoluene-2-sulphonic acid

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CAS 7134-05-6: 5-hydroxytoluene-2-sulphonic acid

4-Hydroxy-2-methylbenzenesulfonic acid

Ref: 3D-HAA13405

4-Hydroxy-2-methylbenzenesulfonic Acid Ammonium Salt

Ref: TR-H798085

Policresulen Impurity 5 Ammonium Salt (m-Cresol-4-Sulfonic Acid Ammonium Salt)

Ref: 4Z-P-568