Understanding the inherent chemical properties of 5-Sulfosalicylic Acid Dihydrate (CAS 5965-83-3) is key to appreciating its diverse applications as an analytical reagent and biochemical compound. The molecule's structure dictates its functionality, making it an indispensable tool in many scientific and industrial settings.

The chemical name, 2-Hydroxy-5-sulfobenzoic acid dihydrate, reveals its core components. It is a derivative of salicylic acid, featuring a sulfonic acid group (-SO3H) at the 5-position and a hydroxyl group (-OH) ortho to the carboxyl group (-COOH) on the benzene ring. The dihydrate form indicates the presence of two water molecules integrated into its crystalline structure.

The presence of the sulfonic acid group significantly enhances its water solubility compared to salicylic acid, which is a critical advantage for its use in aqueous analytical systems. This group also contributes to its strong acidic nature, making it a potent reagent for acid-base reactions and precipitation. The hydroxyl and carboxyl groups, characteristic of salicylic acid, are responsible for its chelating ability with metal ions and its role in forming complexes that can be measured colorimetrically or turbidimetrically.

In biochemical analysis, particularly for protein precipitation, the molecule's acidic and polar groups interact with the amino acid residues in proteins, disrupting their native structure and leading to aggregation and precipitation. This predictable behavior allows for quantitative analysis of protein content, a fundamental technique in many laboratories. For those looking to buy 5-Sulfosalicylic Acid Dihydrate, understanding these chemical underpinnings highlights why sourcing from reliable manufacturers, who maintain high purity standards, is so important for consistent performance. We pride ourselves on supplying high-quality 5-Sulfosalicylic Acid Dihydrate, backed by a thorough understanding of its chemistry. Contact us for pricing and technical details.