Description

5-Sulfosalicylic Acid Dihydrate is a high-purity organic acid derivative widely used as a key analytical reagent and chemical intermediate. Its value lies in its strong chelating and protein-precipitating properties, making it essential for precise laboratory analysis and specialized synthesis. This compound is primarily needed by manufacturers and research laboratories in the pharmaceutical, diagnostic, and fine chemical industries for quality control and process development.

Application

• Clinical Chemistry & Diagnostics: A critical precipitating agent for proteins in biological fluids (e.g., urine, cerebrospinal fluid) for accurate analyte measurement.
• Pharmaceutical Analysis: Used in the assay and purity testing of various drug substances and excipients.
• Research Reagent: Employed in biochemical and molecular biology research for protein isolation and purification protocols.
• Metal Chelation & Catalysis: Serves as a ligand or catalyst component in certain organic synthesis and metal complexation reactions.
• Electroplating & Surface Treatment: Acts as an additive in specific plating baths for improved finish and metal deposition control.
• Photography & Imaging: Used in certain photographic developers and as a component in specialty imaging chemicals.

Basic Information

Product Name	5-Sulfosalicylic Acid Dihydrate
CAS No.	5965-83-3
Molecular Formula	C7H6O6S · 2H2O
Molecular Weight	254.19 g/mol
Synonyms	5-Sulfosalicylic Acid; Sulfosalicylic Acid Dihydrate; 2-Hydroxy-5-sulfobenzoic Acid Dihydrate; 3-Carboxy-4-hydroxybenzenesulfonic Acid Dihydrate; SSA; SSA Dihydrate; Salicylsulfonic Acid; 5-SSA; NSC 4911
EINECS	227-782-4

Quality Control

Our 5-Sulfosalicylic Acid Dihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling, to ensure it meets high-purity standards suitable for analytical and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Loss on Drying	13.0 - 15.0 %
Residue on Ignition (Sulfated Ash)	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.05 %
Heavy Metals (as Pb)	≤ 10 ppm

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