Azocarmine G
Azocarmine G (CAS: 25641-18-3), with the empirical formula C28H18N3NaO6S2 and a molecular weight of 579.58 g/mol, is a vital laboratory reagent. This acidic dye, Colour Index Number 50085, functions as a standard stain in microscopy. Its precise chemical structure and reliable performance make it an indispensable tool for various staining procedures in biological and histological applications.
- IUPAC
- Acid Red 101,Rosinduline
- Synonyms
- Acid Red 101Rosinduline

Microscopy Staining
Azocarmine G serves as a standard stain in microscopy, offering reliable differentiation of cellular structures. It is particularly valuable for preparing tissue samples for detailed examination.
Histological Applications
This stain is widely employed in histology for visualizing cellular components and tissue architecture. Its properties make it suitable for routine histological preparations.
Cell Biology Research
In cell biology, Azocarmine G is utilized for staining purposes to aid in the study of cellular morphology and organisation. It contributes to the understanding of cellular processes.
Hematology Staining
The dye finds application in hematology, assisting in the differential staining of blood cells and tissues. This aids in the diagnostic assessment of various blood-related conditions.
| Molecular weight | 579.58 |
|---|---|
| Empirical formula | C28H18N3NaO6S2 |
| Application | Standard stain for microscopy. |
| 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.
| Colour Index Number | 50085 |
|---|
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 Azocarmine G used for?
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Azocarmine G is a standard stain for microscopy, commonly used in histological, hematological, and cell biology applications for visualizing cellular and tissue structures.
What are the CAS number and formula for Azocarmine G?
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The CAS number for Azocarmine G is 25641-18-3, and its empirical formula is C28H18N3NaO6S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Azocarmine G as a laboratory reagent, typically for research purposes. The specific assay or grade is available upon request, and it is not represented as USP, BP, or EP grade unless explicitly stated.
What are the safety and handling precautions for Azocarmine G?
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Handle Azocarmine G with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The substance is classified with WGK Germany 3, indicating a high hazard to water.
How is Azocarmine G packed, shipped, and exported?
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Azocarmine G is carefully packed to ensure stability during transit and is available for global export by Tech Serve Solutions. Specific packaging details can be provided upon request.
How can I request a sample or quote for Azocarmine G?
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To request a sample or a quote for Azocarmine G, please contact our sales department through the website or via direct inquiry, providing your specific requirements.
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