Toluidine Red
Toluidine Red (CAS: 2425-85-6; Formula: C17H13N3O3; MW: 307.30 g/mol) is a vibrant organic pigment known for its distinct red hue. Primarily utilised as a stain and dye, it finds critical applications in cell biology, hematology, and histology for differential staining. Its specific absorption characteristics at 398 nm and 507 nm contribute to its effectiveness in microscopic visualisation.
- IUPAC
- Pigment Red 3
- Synonyms
- Pigment Red 3
Histological Staining
Toluidine Red serves as a valuable stain in histology, aiding in the differentiation of cellular structures and tissues under microscopic examination. Its affinity for certain cellular components allows for clear visualisation of tissue morphology.
Hematological Staining
In hematology, this dye is employed for staining blood cells, facilitating the identification and study of various blood components. It helps in distinguishing cell types and observing morphological details crucial for diagnostic purposes.
Cell Biology Research
As a vital stain in cell biology, Toluidine Red is used to visualise cellular components and processes. Its spectral properties make it suitable for applications requiring precise colourimetric analysis in biological research.
| Molecular weight | 307.30 |
|---|---|
| Empirical formula | C17H13N3O3 |
| Melting point | 270-272 °C(lit.) |
Hazard statements
- H318Causes serious eye damage
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P501Dispose of contents and container per local regulations
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 41-50/53 |
| Safety statements (S) | 26-39-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 12120 |
|---|---|
| Absorption | λmax 398 nmλmax 507 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 Toluidine Red used for?
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Toluidine Red is primarily used as a stain and dye in cell biology, hematology, and histology for microscopic visualisation and differentiation of cellular structures and tissues.
What are the CAS number and formula for Toluidine Red?
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The CAS number for Toluidine Red is 2425-85-6, and its empirical formula (Hill notation) is C17H13N3O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Toluidine Red suitable for research and laboratory applications. The specific assay and purity are detailed in the product specifications; we do not represent this product as USP, BP, or EP grade.
How should Toluidine Red be handled safely?
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Toluidine Red (CAS: 2425-85-6) presents serious eye damage and is very toxic to aquatic life with long-lasting effects. Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Avoid release to the environment. Store in a cool, dry place away from incompatible materials.
How is Toluidine Red packed and exported?
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Toluidine Red is carefully packed to ensure safe transit and exported in compliance with international shipping regulations for hazardous materials, including UN 3077 (Environmentally Hazardous Substance, Solid, N.O.S.).
How can I request a sample or quote for Toluidine Red?
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To request a sample or a quote for Toluidine Red, please contact the Tech Serve Solutions sales department via our website or by phone, providing your contact details and the required quantity.
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