Detecting and measuring pH levels accurately is fundamental in chemistry, and selecting the right indicator is key to success.

O-Cresolphthalein (CAS 596-27-0) stands out as a specialized indicator, particularly effective for identifying and quantifying substances within the alkaline pH range. As a trusted manufacturer in China, we are proud to offer this high-quality organic intermediate, valued for its distinct transition from colorless to red between pH 8.2 and 9.8. This specific characteristic makes it an indispensable tool for precise laboratory applications and a popular choice when you want to buy O-Cresolphthalein.

The primary application for O-Cresolphthalein lies in its role as an acid and base indicator. Its sharp color change within the specified alkaline range is critical for accurate acid-base titrations. For instance, in titrations where the equivalence point is expected to be in the slightly alkaline zone, O-Cresolphthalein provides a clear and unambiguous endpoint. This reliability is why many researchers and quality control professionals choose to buy O-Cresolphthalein from established suppliers.

Choosing a reputable supplier in China for your O-Cresolphthalein needs ensures that you receive a product of consistent purity and performance. A reliable manufacturer understands the nuances of producing a quality chemical indicator for titration, guaranteeing that each batch will deliver the expected color transition accurately. This consistency is crucial for reproducible scientific results.

In essence, if your work involves determining pH levels within the 8.2-9.8 range, O-Cresolphthalein is an excellent choice. Its clarity of color change and the assurance of quality when sourced from a dependable manufacturer make it a preferred indicator for precise chemical analysis and experimental procedures.