Phenolphthalein, identified by its CAS number 77-09-8, is a chemical compound that plays a pivotal role in numerous scientific and commercial applications. Its most recognized function is as a pH indicator, specifically in acid-base titrations. The transition from colorless to a distinct pink hue within the pH range of 8.2 to 10.0 makes it an indispensable tool for accurately determining the equivalence point in neutralization reactions. This precision is vital for students and professionals in fields requiring meticulous chemical analysis.

Beyond its crucial role in titration, Phenolphthalein also serves as a valuable component in the manufacturing of cosmetic raw materials and oral care chemicals. In these industries, the purity and consistency of ingredients are paramount, and high-quality Phenolphthalein powder, often specified at 99% purity, meets these demanding standards. The compound's stability also contributes to its desirability as a raw material, ensuring that finished products maintain their intended properties over their shelf life.

For businesses looking to buy Phenolphthalein, understanding the market for Phenolphthalein suppliers is key to securing a reliable source. Factors such as product assay, adherence to industry standards (like CP/EP/BP grades), and packaging (typically in drums with plastic bags) are important considerations. The compound's white powder appearance is a standard visual characteristic. It is also important to note its storage requirements: sealed in a cool, dry place, away from moisture and light, to maintain its shelf life of up to two years.

The application of Phenolphthalein in areas like pH indication and as a general chemical reagent highlights its enduring importance in scientific research and industrial production. Whether for complex titrations or as a building block in consumer goods, the demand for this stable compound remains consistent. Companies that consistently provide high-quality Phenolphthalein with CAS 77-09-8 are valued partners in various supply chains, contributing to the successful development and manufacturing of essential products.