Acid Red 97
Acid Red 97 (CAS: 10169-02-5), with the molecular formula C32H20N4Na2O8S2 and molecular weight 698.63 g/mol, is a vital dye used in various scientific and industrial applications. It is recognised for its utility in histological and cell biology staining techniques. This anionic dye, also known by its Colour Index Number 22890, exhibits a characteristic absorption maximum at 498 nm, contributing to its effectiveness in visualisation procedures.

Histology and Hematology Staining
Acid Red 97 is extensively employed as a stain in histology and hematology for the differential staining of tissue sections and blood smears, aiding in the visualisation of cellular structures and components.
Cell Biology Research
In cell biology, this dye serves as a valuable tool for staining cellular components, facilitating microscopic observation and analysis of cell morphology and organisation.
Dye and Pigment Applications
As a Colour Index listed dye, Acid Red 97 finds applications in various industrial dyeing processes where specific colouration and stability are required.
| Molecular weight | 698.63 |
|---|---|
| Empirical formula | C32H20N4Na2O8S2 |
| Colour Index Number | 22890 |
|---|---|
| Absorption | λmax 498 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 Acid Red 97 used for?
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Acid Red 97 is primarily used for staining in histology, hematology, and cell biology, as well as in general dyeing applications due to its properties as an anionic dye.
What are the CAS number and formula for Acid Red 97?
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The CAS number for Acid Red 97 is 10169-02-5, and its empirical formula is C32H20N4Na2O8S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Acid Red 97, CAS 10169-02-5, as a technical or research grade chemical. We do not represent it as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations for Acid Red 97?
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Acid Red 97 (CAS: 10169-02-5) has a GHS classification indicating it may cause skin irritation and serious eye irritation. Handle with appropriate personal protective equipment in a well-ventilated area.
How is Acid Red 97 packed and shipped?
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Acid Red 97 is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical substances.
How can I request a sample or quote for Acid Red 97?
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To request a sample or a quote for Acid Red 97 (CAS: 10169-02-5), please contact our sales team through the website or by phone, providing your specific requirements.
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