Reichardt’s dye
Reichardt’s dye (CAS: 10081-39-7), with the empirical formula C41H29NO and a molecular weight of 551.68 g/mol, is a solvatochromic betaine dye. Its distinct spectral properties allow it to serve as a valuable tool for determining solvent polarity. This characteristic makes it essential in various chemical and biological research applications where understanding solvent environments is crucial.
- IUPAC
- 2,6-Diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenolate,2,6-Diphenyl-4-(2,4,6-triphenylpyridinio)phenolate
- Synonyms
- 2,6-Diphenyl-4-(2,4,6-triphenyl-1-pyridinio)phenolate2,6-Diphenyl-4-(2,4,6-triphenylpyridinio)phenolate
Solvent Polarity Determination
Reichardt’s dye is widely employed as a solvatochromic indicator to quantitatively measure the polarity of various solvents. Its absorption spectrum shifts predictably with changes in solvent polarity, providing a sensitive and reliable method for characterisation.
Research in Physical Chemistry
The dye is utilized in physical chemistry research to probe solvent effects on reaction rates, equilibria, and molecular interactions. Its sensitivity to the local molecular environment makes it invaluable for understanding complex chemical processes.
Cell Biology Studies
As a stain, Reichardt’s dye can be applied in cell biology to investigate cellular microenvironments. Its solvatochromic properties may offer insights into the polarity within different cellular compartments or in response to biological stimuli.
| Molecular weight | 551.68 |
|---|---|
| Empirical formula | C41H29NO |
| Application | Solvatochromic betaine dye for determination of solvent polarity.1,2 |
| Melting point | 271-275 °C(lit.) |
| 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.
| Absorption | λmax 306 nmλmax 551 nm (2nd) |
|---|
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 Reichardt’s dye used for?
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Reichardt’s dye is primarily used as a solvatochromic betaine dye for the determination of solvent polarity. It is also applied in cell biology, hematology, and histology research.
What is the CAS number and molecular formula for Reichardt’s dye?
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The CAS number for Reichardt’s dye is 10081-39-7, and its empirical formula is C41H29NO.
What grade and purity does Tech Serve Solutions supply for Reichardt’s dye?
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Tech Serve Solutions supplies Reichardt’s dye with a purity suitable for research and general laboratory applications. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
What are the safety precautions when handling Reichardt’s dye?
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When handling Reichardt’s dye, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if necessary, and it is classified under WGK Germany 3, indicating a significant hazard to water.
How is Reichardt’s dye packed and shipped?
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Reichardt’s dye is carefully packed to ensure safe transit and is available for export worldwide by Tech Serve Solutions.
How can I request a quote or sample of Reichardt’s dye?
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To request a quote or a sample of Reichardt’s dye, please contact our sales team through the website or by phone.
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