High Quality Phenolphthalein CAS No. 77-09-8 Medical Grade & Ar Grade

High Quality Phenolphthalein CAS No. 77-09-8 Medical Grade & Ar Grade. High Purity Grade: Assay 98.0%-101.0% with heavy metals not more than 0.001%. Versatile Applications: Used in laboratory reagents, diagnostics, research, and environmental protection. Specific pH Indicator Range: Colorless to pink above pH 9, with range 8.2-10.0. Medical Grade Quality: Suitable for medical, food, and biological purposes with high purity. Stable Storage Requirements: Store in well-closed drums in cool and dry areas to maintain quality. Organic Analytical Reagent: CAS No. 77-09-8, formula C20H14O4, used for synthesis and electrophoresis. Global Market Supply: Available for South America, Europe, Africa, and other major global markets.