Ponceau SS
Ponceau SS (CAS: 6226-78-4), with the molecular formula C22H14N4Na2O7S2 and a molecular weight of 556.48, is a synthetic organic dye. It functions as a vital stain and dye in various laboratory applications. Its primary uses lie within cell biology and histology, aiding in the visualization and differentiation of cellular structures and tissues. This azo dye is recognized by its Colour Index number 27190.
- IUPAC
- Acid Red 150

Cell Biology Staining
Ponceau SS serves as a diagnostic stain in cell biology. It is used to highlight specific cellular components or overall cell morphology, facilitating microscopic examination and analysis.
Histological Dyeing
In histology, Ponceau SS is employed as a dye for preparing tissue sections. It aids in the differential staining of cells and tissues, supporting pathological and research investigations.
Research Reagent
As a laboratory reagent, Ponceau SS is utilized in various research protocols where its dyeing properties are required. Its specific absorption characteristics at approximately 351 nm and 514 nm are important for certain spectroscopic applications.
| Molecular weight | 556.48 |
|---|---|
| Empirical formula | C22H14N4Na2O7S2 |
| Colour Index Number | 27190 |
|---|---|
| Absorption | λmax 351 nm (2nd)λmax 514 nm |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ponceau SS used for?
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Ponceau SS is primarily used as a stain and dye in cell biology and histology applications for microscopic examination and tissue preparation.
What is the CAS number and molecular formula for Ponceau SS?
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The CAS number for Ponceau SS is 6226-78-4, and its molecular formula is C22H14N4Na2O7S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ponceau SS as a laboratory reagent. The precise assay is available on the Certificate of Analysis. TSS does not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling Ponceau SS?
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Ponceau SS is classified under GHS with a Water Hazard Class of 3 (WGK 3) in Germany. Handle with appropriate personal protective equipment and in accordance with safety data sheet guidelines.
How is Ponceau SS packed and shipped?
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Ponceau SS is carefully packed and exported by Tech Serve Solutions in compliance with all relevant shipping regulations for chemical compounds.
How can I request a sample or quote for Ponceau SS?
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To request a sample or a quote for Ponceau SS, please contact the Tech Serve Solutions sales team through our website or by phone.
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