For any professional involved in water quality assessment, selecting the appropriate pH indicator is paramount. Among the widely recognized indicators, Cresol Purple (CAS 2303-01-7) stands out for its distinct color transitions and reliability in various applications. Understanding its properties and how to source it effectively can significantly impact the accuracy and efficiency of your work.

Cresol Purple, also known by its synonym m-Cresol Purple, is a triphenylmethane dye that serves as a versatile pH indicator. Its chemical structure, C21H18O5S, underpins its unique behavior across different pH levels. For laboratory professionals and procurement managers, knowing its primary function is key. It's primarily used to detect the alkalinity of water and for certain analytical tests where precise pH determination is crucial.

The efficacy of Cresol Purple lies in its clear color changes. In acidic conditions, it transitions from red at pH 1.2 to yellow by pH 2.8. Conversely, in alkaline environments, it shifts from yellow at pH 7.6 to a distinct purple by pH 9.2. This wide working range makes it suitable for a broad spectrum of analytical scenarios. For those looking to buy this chemical, understanding these pH ranges is fundamental for application success.

When procurement managers search for Cresol Purple, they often look for a reliable supplier in China that can guarantee high purity and consistent supply. Factors like purity levels (typically ≥98%), residue on ignition (≤0.2%), and loss on drying (≤0.5%) are critical quality parameters. As a leading manufacturer, we focus on delivering Cresol Purple that meets these stringent specifications, ensuring that researchers and formulators receive a product they can trust for critical analyses.

For companies requiring bulk quantities, establishing a relationship with a reputable manufacturer is essential. We offer Cresol Purple in various packaging options, such as 25KG drums, and can customize according to customer needs, ensuring seamless integration into your existing supply chain. Whether you are involved in environmental monitoring, chemical synthesis, or product formulation, securing a stable supply of high-quality reagents like Cresol Purple is vital. If you are looking to purchase Cresol Purple or inquire about its price, reaching out to experienced manufacturers and suppliers will provide you with the best value and support.