o-Cresolphthalein complexone by Research Lab Fine Chem Industries is a high grade reagent. Also known as o-CresolphthalexonPhthalein complexone, this is a pH indicator. The reagent is available as a white powder which is insoluble in water. The reagent has a melting point of 98 C. While it is stable under general conditions, this reagent is incompatible with strong oxidizing agents. CAS No.: 2411-89-4 Quantity Provided: 1 gm per bottle Molecular formula: C32H32N2O12 Molecular weight: 636.60 Assay: 98 %o-Cresolphthalein complexone has a variety of applications in chemical and biological sectors. This reagent finds applications in the organic synthesis of various derivatives. This indicator solution is used for complexometric titrations of magnesium, calcium, barium and strontium. This compound can also be used as an alkaline earth metal ion indicator. o-Cresolphthalein complexone further finds use in an auto analyser to determine serum calcium. This reagent is suitable for industrial synthesis of products and research applications.