Gspchem manufactures purest grade of Alizarin Red S in the pH Indicators industry of world market .Alizarin Red S is a water-soluble sodium salt of Alizarin
sulfonic acid .It was discovered by Graebe and Libermann in 1871. The chemical formula for Alizarin Red S is C14H7NaO7S.In the histology field , Alizarin Red S is been used to stain calcium deposits in tissue .In the geology field ,it is used to stain and differentiate carbonate minerals. Its Molecular weight is 360.28gm/mole. Gspchem is well known in the world market as an Alizarin Red S manufacturer.