Sudan II
Sudan II (CAS 3118-97-6), with the molecular formula C18H16N2O and a molecular weight of 276.33 g/mol, is a synthetic azo dye. It is characterized by its vibrant colours and is primarily employed as a histological stain and a biological stain in cell biology applications. This compound is essential for visualising cellular structures and components in laboratory research and diagnostic procedures.
- IUPAC
- 1-(2,4-Xylylazo)-2-naphthol,Solvent Orange 7
- Synonyms
- Solvent Orange 71-(2,4-Xylylazo)-2-naphthol
Histological Staining
Sudan II is widely used in histology for staining lipids and fat-soluble substances within tissue samples. It provides clear differentiation, aiding in the microscopic examination of tissue morphology.
Cell Biology Research
In cell biology, Sudan II serves as a vital stain for visualising various cellular components. Its ability to selectively colour specific structures makes it valuable for experimental studies.
Biological Staining
This dye is employed for general biological staining purposes, assisting researchers in identifying and analysing cellular and tissue elements under microscopic observation.
| Molecular weight | 276.33 |
|---|---|
| Empirical formula | C18H16N2O |
| Melting point | 156-158 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Colour Index Number | 12140 |
|---|---|
| Absorption | λmax 493 nmλmax 604 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 Sudan II used for?
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Sudan II is primarily used as a stain in histology and cell biology for visualising lipids and other fat-soluble components within cells and tissues.
What is the CAS number and chemical formula for Sudan II?
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The CAS number for Sudan II is 3118-97-6, and its chemical formula is C18H16N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sudan II as a technical or research grade chemical. We do not represent this product as USP, BP, or EP grade.
How should Sudan II be handled safely?
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Sudan II may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Work in a well-ventilated area.
How is Sudan II packed and shipped?
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Sudan II is carefully packed according to industry standards for safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample for Sudan II?
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To request a quote or a sample of Sudan II, please contact our sales team through the website or by calling us directly.
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