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Sudan iii Solution is a solution of the lysochrome azo dye Sudan III, used to colour lipid-rich regions in appropriately prepared microscopy specimens. It is supplied as a laboratory product for educational and analytical work where the specified method is appropriate. Correct identification of the active components, concentration and solvent system is particularly important for reproducibility and safe handling. The reagent should be selected according to the intended experiment rather than assumed suitable for every analytical technique. Measured aliquots, suitable controls and good laboratory practice help distinguish genuine chemical responses from interference or contamination. Where a mixture has no single chemical formula or formula mass, the constituent identity is indicated instead of a fictitious whole-mixture value. The container label and current safety guidance should be consulted before use in schools, colleges, universities or research laboratories.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | Orange red liquid |
| Assay | 99% |
| Chemical Name | Sudan III staining solution |
| Alternate Names | Sudan III lipid stain; Solvent Red 23 solution |
| Molecular Formula | C₂₂H₁₆N₄O (dye) |
| Empirical Formula | C₁₁H₈N₂O (dye) |
| CAS Number | 85-86-9 (dye) |
| Molecular Weight | 352.39 g/mol (dye) |
| Grade | LR Laboratory Reagent |
Key Features of Sudan iii Solution
- Contains a fat-soluble azo dye
- Gives orange-red staining of suitable lipid material
- Staining efficacy depends on solvent formulation
- Used with controls to assess nonspecific background staining
- Solvents may be flammable and require appropriate precautions
Laboratory Applications of Sudan iii Solution
- Lipid staining of suitable teaching specimens
- Demonstrating partitioning of dyes into lipid phases
- Microscopic comparison of lipid-rich and lipid-poor regions
- Histology practicals using validated staining steps
- Teaching solvent effects on dye distribution
Why Choose Lab Wale to Buy Sudan iii Solution
Lab Wale provides Sudan iii Solution as part of its laboratory chemical and scientific supply range for teaching institutions and research facilities. Product selection should take account of the indicated reagent identity, concentration, analytical method, and packaging requirements. For sensitive laboratory work, users should confirm any manufacturer-specific formulation details and review available technical and safety documentation. The appropriate product is one whose composition and grade match the intended experiment, not simply one with a similar name.
Frequently Asked Questions About Sudan iii Solution
What is Sudan iii Solution used for in a laboratory?
This product is mainly considered for lipid staining of suitable teaching specimens, as well as related demonstrations or methods that call for its identified chemical components. Its use must remain within the documented reagent strength and validated procedure, especially in quantitative work.
What does Sudan III stain?
Sudan III is a lysochrome dye that preferentially dissolves into some lipid-rich structures. It supports qualitative lipid visualisation when the sample is correctly prepared and the stain protocol is appropriate. For reliable observations, compare against appropriate reference controls and use the method-specified timing and conditions.
Does Sudan iii Solution have one CAS number and molecular weight?
The relevant identifier is 85-86-9 (dye), and the formula information is C₂₂H₁₆N₄O (dye). For a formulated solution or mixture, a single whole-product molecular weight is not meaningful; ingredient identities and actual concentration should be checked separately.
Can Sudan iii Solution be used in schools and research laboratories?
It may be appropriate in school, college, or research settings when the named procedure, required concentration and safety controls match the product. Hazardous reagents require trained supervision, suitable equipment and compliance with institutional chemical-handling policies.
How should Sudan iii Solution be stored and handled?
Store closed, protected from heat and strong light as recommended for the dye and solvent. If alcohol based, keep away from ignition and use approved flammable-liquid storage. Wear gloves and eye protection. Avoid inhaling vapours from the solvent and staining skin or clothing. Use app Follow the current product safety data sheet and local hazardous-waste procedures.
Storage Conditions for Sudan iii Solution
Store closed, protected from heat and strong light as recommended for the dye and solvent. If alcohol based, keep away from ignition and use approved flammable-liquid storage. Keep clearly labelled and inspect the container regularly for leakage or change in appearance.
Precautions for Handling Sudan iii Solution
Read the current Safety Data Sheet (SDS) before use. Wear gloves and eye protection. Avoid inhaling vapours from the solvent and staining skin or clothing. Use appropriate ventilation and dispose of organic dye solutions per the SDS. Maintain competent supervision in educational laboratories, suitable chemical segregation and properly documented waste disposal.


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