Cibacron Brilliant Red 3B-A
Cibacron Brilliant Red 3B-A (CAS: 17681-50-4) is a reactive dye with the molecular formula C32H24ClN8Na4O14S4 and a molecular weight of 1000.25 g/mol. It exhibits maximum absorption at 517 nm. This compound is primarily used as a stain in various biological and histological applications, including cell biology and hematology. Tech Serve Solutions supplies this dye for laboratory and research purposes.
- IUPAC
- Reactive Red 4

Cell Biology Staining
Used as a vital stain in cell biology to differentiate and visualize cellular structures. Its reactive nature allows for covalent bonding to cellular components.
Histological Staining
Applied in histology for the staining of tissue sections. It aids in the microscopic examination of cellular morphology and tissue architecture.
Hematology Staining
Utilized in hematology for the differential staining of blood cells and bone marrow smears. It helps in identifying various blood cell types.
Dye Research
Serves as a reference compound or reagent in dye chemistry research and development, particularly concerning reactive dyes.
| Molecular weight | 1000.25 |
|---|---|
| Empirical formula | C32H24ClN8Na4O14S4 |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 18105 |
|---|---|
| Absorption | λmax 517 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 Cibacron Brilliant Red 3B-A used for?
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Cibacron Brilliant Red 3B-A (CAS: 17681-50-4) is primarily used as a stain in cell biology, hematology, and histology for visualizing cellular and tissue structures.
What are the CAS number and molecular formula for Cibacron Brilliant Red 3B-A?
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The CAS number is 17681-50-4 and the molecular formula is C32H24ClN8Na4O14S4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cibacron Brilliant Red 3B-A as a laboratory reagent. The purity is not specified as USP, BP, or EP; for specific assay details, please consult the product's Certificate of Analysis.
What are the safety and handling considerations for Cibacron Brilliant Red 3B-A?
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Handle Cibacron Brilliant Red 3B-A with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It carries a WGK Germany rating of 3, indicating a high hazard to water.
How is Cibacron Brilliant Red 3B-A packed, shipped, and exported?
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Cibacron Brilliant Red 3B-A is carefully packed to ensure safe transport. Tech Serve Solutions is an experienced global exporter of chemicals, adhering to all relevant shipping regulations.
How can I request a sample or quote for Cibacron Brilliant Red 3B-A?
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To request a sample or a quote for Cibacron Brilliant Red 3B-A, please contact our sales team through the website or via direct inquiry, providing your contact details and required quantity.
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