ChemiPURE Ponceau S, Sodium Salt is a high-quality laboratory dye designed for research, molecular biology, biochemistry, proteomics, and analytical laboratory applications. It is widely used as a rapid, reversible protein stain for the visualization of proteins transferred onto nitrocellulose and PVDF membranes following Western blotting.
 
Ponceau S provides fast and sensitive staining of transferred proteins, allowing researchers to verify efficient protein transfer, assess sample loading uniformity, and identify molecular weight marker positions prior to antibody incubation. Because the stain is reversible, it can be easily removed without interfering with subsequent immunodetection procedures, making it an essential reagent for Western blot quality control.
 
ChemiPURE Ponceau S, Sodium Salt is manufactured under stringent quality control standards to ensure high purity, excellent batch-to-batch consistency, and reliable staining performance for routine laboratory and research applications.
 
Applications
Reversible staining of proteins on PVDF and nitrocellulose membranes 
Verification of protein transfer efficiency after Western blotting 
Assessment of equal protein loading between samples 
Visualization of protein molecular weight markers 
Western blot quality control 
Protein analysis and proteomics research 
Biochemistry and molecular biology applications 
General laboratory and research applications
 
CAS Number: 6226-79-5 
Molecular Weight: 760.57
Molecular Formula: C₂₂H₁₂N₄Na₄O₁₃S₄
Appearance: Dark red to brown powder
Storage Temperature: Room Temperature
 
This product is sold for laboratory research use only.