Rhodamine 6G
Rhodamine 6G (CAS: 989-38-8; Formula: C28H31N2O3Cl; MW: 479.01) is a highly fluorescent organic dye widely recognised for its exceptional photophysical properties. It functions as a versatile fluorescent probe and stain, exhibiting strong absorption and emission characteristics. Rhodamine 6G is primarily employed in scientific research and analytical applications, particularly within cell biology and detection methodologies, owing to its suitability for fluorescence-based assays.
- IUPAC
- Basic Red 1

Fluorescent Staining and Labeling
Rhodamine 6G is extensively used as a fluorescent stain for biological samples, enabling visualisation of cellular structures and processes under fluorescence microscopy. Its bright emission allows for precise cellular imaging and tracking.
Laser Dye
This compound is a well-known gain medium for tunable dye lasers, emitting in the orange-red region of the spectrum. Its efficiency makes it a valuable component in scientific instrumentation.
Fluorescence-Based Assays
Due to its high quantum yield and photostability, Rhodamine 6G is suitable for various fluorescence-based detection methods and quantitative assays in biochemical and analytical chemistry.
Flow Cytometry
Rhodamine 6G can be utilised in flow cytometry for cell identification and analysis, where its fluorescence properties aid in distinguishing cell populations.
| Molecular weight | 479.01 |
|---|---|
| Linear formula | C28H31N2O3Cl |
| Solubility | H2O: solubleethanol: soluble |
| Suitability | suitable for fluorescence |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 45160 |
|---|---|
| Product Line | BioReagent |
| Absorption | λmax 524 nm |
| Fluorescence | λex 528 nm; λem 551 nm in methanol |
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 Rhodamine 6G primarily used for?
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Rhodamine 6G is primarily used as a fluorescent probe, stain, and as a laser dye due to its strong fluorescence properties in the orange-red spectrum.
What is the CAS number and chemical formula for Rhodamine 6G?
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The CAS number for Rhodamine 6G is 989-38-8, and its chemical formula is C28H31N2O3Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Rhodamine 6G as a BioReagent. The exact purity and assay are detailed in the product specifications; we do not represent this product as USP, BP, or EP grade.
How should Rhodamine 6G be handled safely?
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Rhodamine 6G is classified with signal word 'Warning' and hazard statement H302 (Harmful if swallowed). Appropriate personal protective equipment includes a dust mask (type N95 or equivalent), eyeshields, faceshields, and gloves. Handle in a well-ventilated area.
Is Rhodamine 6G available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Rhodamine 6G, meeting stringent quality control standards for international shipment.
How can I request a sample or quote for Rhodamine 6G?
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Please contact our sales team through the website or direct inquiry channels to request a sample or obtain a quote for Rhodamine 6G.
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