5-Sulfosalicylic Acid Dihydrate CAS 5965-83-3 Purity >99.0% (HPLC) (T)

5-Sulfosalicylic Acid Dihydrate (CAS: 5965-83-3), 1. Used as a biochemical reagent, analytical reagent and complex indicator, colorimetric analysis to determine ferric ion. Determination of iron ore, coal char, and limestone as raw materials of steel. Intermediate for the manufacture of surfactants. Organic catalyst. Grease additives. 2. Used for cerebrospinal fluid test, urine protein and iron ion test. Reagent for determination of aluminum, beryllium, calcium, chromium, copper, iron, lead, magnesium, sodium, titanium, thallium, nitrate, etc. 3. Used as a color developing agent for the determination of Fe3+ by spectrophotometry, a masking agent for Al3+ plasma and a titration indicator for Fe3+. Also used as organic synthesis intermediates and grease additives. 4. Used in cyanide-free silver plating solution. 5-Sulfosalicylic Acid Dihydrate is for reducing and fixation of proteins in agarose and polyacrylamide gels. When exposed to trace amounts of iron, it becomes pink crystalline, and decomposes into phenol and salicylic acid at high temperature. Further, it acts as an intermediate in the synthesis of active pharmaceutical ingredients like doxycycline and methacycline. In addition to this, it is used as a spray reagent for the detection of amino acids on thin layer chromatography (TLC) plates and as a doping agent for polyaniline.