Erythrosin B
Erythrosin B (CAS: 15905-32-5), a tetraiodinated derivative of fluorescein with the molecular formula C20H8I4O5, is a vibrant red, water-soluble dye. It exhibits fluorescence and is primarily utilised as a biological stain in cell biology, histology, and haematology. Its distinct absorption at λmax 533 nm makes it useful for specific staining applications within these scientific disciplines. Tech Serve Solutions supplies Erythrosin B for research and laboratory use.
- IUPAC
- Solvent Red 140
Biological Staining
Erythrosin B serves as a vital stain in cell biology and histology. It is widely used to selectively stain certain cellular components, aiding in microscopic examination and analysis.
Histological Preparations
In histology, Erythrosin B is employed to visualise tissue structures. It is particularly useful for staining cytoplasm and muscle fibres, enhancing contrast in microscopic slides.
Haematology Applications
This dye finds application in haematology for the differential staining of blood cells. It can help in identifying specific cell types and morphological characteristics.
Fluorescence Microscopy
Due to its fluorescent properties, Erythrosin B is applicable in fluorescence microscopy techniques. It can be used as a fluorescent probe for various biological studies.
| Molecular weight | 835.89 |
|---|---|
| Empirical formula | C20H8I4O5 |
| Solubility | spirit: soluble |
| Melting point | 303 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 45430:2 |
|---|---|
| Absorption | λmax 533 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 Erythrosin B used for?
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Erythrosin B is used as a biological stain in cell biology, histology, and haematology for visualising cellular components and tissues under microscopy.
What is the CAS number and molecular formula for Erythrosin B?
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The CAS number for Erythrosin B is 15905-32-5, and its molecular formula is C20H8I4O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Erythrosin B primarily as a research or technical grade chemical. The specific assay or purity will be detailed on the Certificate of Analysis provided with your order, as we do not represent it as USP, BP, or EP grade.
What are the safety and handling precautions for Erythrosin B?
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Erythrosin B is classified under WGK 2. When handling, it is essential to wear eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter to prevent exposure.
How is Erythrosin B packed and shipped?
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Erythrosin B is carefully packed and exported by Tech Serve Solutions in compliance with all relevant shipping regulations for chemical substances.
How can I request a sample or quote for Erythrosin B?
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To request a sample or a detailed quote for Erythrosin B, please contact our sales department through the website or by phone.
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