Ponceau S (C.I. 27195), 25 g

27195) is part of a category of reagents recognized for technical precision in various analytical techniques. Its molecular formula is C22H12N4Na4O13S4, with a molecular weight of 760.6. This compound belongs to a class of azo dyes, characterized by their extensive use in staining biological materials for histological and electrophoretic analysis. Proper handling requires adherence to standard laboratory protocols, including the use of Ponceau S is commonly employed in the staining of NC membranes using solutions containing 0.2-2% Ponceau S in 3% trichloroacetic acid and 3% sulphosalicylic acid, or in the staining of PVDF membranes using solutions containing 0.1-1% Ponceau S in 10% acetic acid.

• CAS Number: 6226-79-5
• Molecular Formula: C22H12N4Na4O13S4
• Exact Mass: 759.8874483
• Molecular Weight: 760.6