Cresol Red Free acid

Cresol Red Free acid CAS: 1733-12-6 | MF: C21H18O5S | MW: 382.43, Buy now for reliable and reproducible results from Tristains.

Cresol Red is a triphenylmethane dye characterized by a chemical structure containing three phenolic groups and a sulfonated phthalide ring. It is available in multiple forms, including the free acid and sodium salt, with the free acid form being the most widely used in laboratory environments. Cresol Red Free Acid appears yellow in acidic solutions and changes to red under alkaline conditions. The color transition occurs within a pH range of approximately 7.2 to 8.8. With the molecular formula C21H18O5S, Cresol Red Free Acid functions as a biochemical pH indicator extensively applied in biochemical and biological laboratories.

Applications

• Commonly used as a pH indicator in laboratory and research applications.
• Essential for monitoring pH in biochemical and biological assays, including cell culture media preparation, enzyme kinetics studies, and protein purification workflows.
• Widely used in buffer preparation and titration procedures due to its precise pH indication within a defined range.

Key features

• High Sensitivity: Provides clear, sharp, and accurate color changes in response to pH variation.
• Versatile Applications: Suitable for use in biochemical research, biological testing, and general laboratory procedures.
• Stable & Reliable: Ensures consistent and reproducible results across repeated experiments.

General Description

Cresol Red Free Acid is a pH indicator of high quality, which is highly appreciated due to its high purity, reliability, and precision. It finds extensive applications in scholarly studies, educational laboratories and industrial plants where pH measurements are essential. The indication of the indicator is characterized by sharp and reproducible color transitions, and it possesses a high chemical stability, which makes the indicator a choice for researchers and laboratory practitioners.

TriStains Indicators can be trusted by laboratories that want to buy Cresol Red Free Acid since it is of laboratory grade and has a consistent performance. The product packs can be obtained in different sizes to cater to both the routine laboratory use and to those who know volume usage. The price of Cresol Red Free Acid will be determined based on the quantity of order, packaging format and bulk. Universities, research institutions and industrial laboratories can enjoy competitive prices and flexible options of purchasing. Get in touch with the sales team to seek a quote or custom and bulk packaging.

About Brand

TriStains provides a marketplace for histology and biological stains, which is comprehensive enough to encompass the peculiar requirements of laboratories specializing in Histology, Cytology, Microbiology, and Hematology. With a reputation for exceeding quality expectations, TriStains performance is outstanding which allows for resolution of cell and tissue components fundamental to life sciences to be clearly visualized. Each product under TriStains series is validated for accuracy, reliability and consistency. TriStains, which manufactures and markets stains and indicators in various packing, offers laboratories turn key solutions for all their staining and indicator needs, improving accuracy in every experiment.