Thymol Blue
Thymol Blue (CAS: 76-61-9), with the molecular formula C27H30O5S and a molecular weight of 466.59 g/mol, is a triarylmethane dye. It functions as a pH indicator, exhibiting distinct colour changes within specific pH ranges. This compound is primarily utilised in laboratory settings for analytical chemistry applications, including titrations and pH determination, owing to its well-defined transition points.
- IUPAC
- Thymolsulfonphthalein
- Synonyms
- Thymolsulfonphthalein
pH Indicator
Thymol Blue is widely employed as a pH indicator in acid-base titrations. It displays a colour transition from red to yellow in the acidic range (pH 1.2–2.8) and from yellow to blue in the alkaline range (pH 8.0–9.2).
Laboratory Reagent
As a laboratory reagent, Thymol Blue is essential for various analytical procedures. Its applications span across chemical analysis, research, and educational laboratories requiring precise pH measurements.
Cell Biology and Histology
Within cell biology and histology, Thymol Blue can be used as a component in staining solutions, aiding in the visualisation of cellular structures and tissues. Its colourimetric properties are valuable for differential staining techniques.
| Molecular weight | 466.59 |
|---|---|
| Empirical formula | C27H30O5S |
| Melting point | 221-224 °C (dec.)(lit.) |
| Synonym | 1.2 - 2.8, red to yellow8.0 - 9.2, yellow to blue |
|---|
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 Thymol Blue used for?
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Thymol Blue is primarily used as a pH indicator in laboratory settings, particularly for acid-base titrations, showing colour changes from red to yellow (pH 1.2-2.8) and yellow to blue (pH 8.0-9.2). It also finds applications in cell biology and histology as a staining agent.
What is the CAS number and formula for Thymol Blue?
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The CAS number for Thymol Blue is 76-61-9, and its molecular formula is C27H30O5S.
What grade and purity does Tech Serve Solutions supply for Thymol Blue?
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Tech Serve Solutions supplies Thymol Blue as a research-grade chemical. The specific assay is detailed on the product's Certificate of Analysis. TSS does not represent this product as USP, BP, or EP grade.
How should Thymol Blue be handled and stored?
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Handle Thymol Blue with appropriate personal protective equipment, such as gloves and eye protection, to avoid contact. Store in a cool, dry, well-ventilated area away from incompatible substances. Consult the Safety Data Sheet (SDS) for detailed hazard and handling information.
Is Thymol Blue a controlled substance?
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Based on the provided data, Thymol Blue is not listed as a controlled substance.
How are Thymol Blue products packed, shipped, and exported?
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Thymol Blue is carefully packed in appropriate containers to ensure stability during transit and is available for export globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a sample or quote for Thymol Blue?
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To request a sample or a quotation for Thymol Blue, please contact our sales department through the website or by calling our customer service line.
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