The journey of a chemical compound from discovery to widespread application is often a fascinating one. Phenolphthalein (CAS: 77-09-8) is a prime example, boasting a rich history as a fundamental acid-base indicator that continues to find new relevance. At NINGBO INNO PHARMCHEM CO.,LTD., we appreciate the enduring legacy of such compounds.

First synthesized in the late 19th century by Adolf von Baeyer, Phenolphthalein quickly gained prominence in analytical chemistry. Its distinct, sharp color change within a specific pH window—the phenolphthalein pH range of 8.2 to 10.0—made it an invaluable tool for titration, revolutionizing quantitative chemical analysis. The understanding of its phenolphthalein chemical properties, including its chromophoric structure that allows for the color change, paved the way for its widespread adoption.

While its role as a titration indicator remains its most famous application, the phenolphthalein indicator applications have expanded significantly. It has been incorporated into various diagnostic tests, including the traditional 'blue powder' test for detecting blood, and has found uses in the manufacturing of certain types of plastics and dyes. The ability to reliably buy Phenolphthalein online has facilitated its integration into novel research and development projects.

The phenolphthalein stability profile, coupled with its predictable behavior, ensures its continued utility. Even with the advent of more sophisticated analytical instruments, Phenolphthalein remains a cost-effective and accessible indicator for many applications. NINGBO INNO PHARMCHEM CO.,LTD. is proud to supply this historically significant chemical, contributing to both educational endeavors and ongoing scientific innovation. For all your chemical needs, trust in our commitment to quality and service.