Alizarin Red S Powder
Product Description
Our high-purity Alizarin Red S powder (≥99%) provides a reliable anthraquinone dye widely used in biological staining, calcium quantification assays, histological evaluations, and general analytical chemistry. Known for its strong affinity for calcium complexes, the dye is commonly employed in mineralization studies, osteogenic differentiation assays, and tissue-based staining protocols.
Supplied as a free-flowing red powder, this grade exhibits excellent solubility in aqueous solutions and provides consistent chromatic performance across laboratory workflows requiring high-grade staining precision.
Specifications
| Property | Value |
|---|---|
| Chemical Name | Alizarin Red S |
| Synonyms | Alizarin Carmine, Sodium alizarin sulfonate |
| CAS Number | 130-22-3 |
| EC Number | 204-465-2 |
| Purity | ≥99% |
| Form | Powder |
| Appearance | Red to orange-red powder |
| Molecular Formula | C₁₄H₇NaO₇S |
| Molar Mass | 342.25 g/mol |
| Melting Point | Decomposes |
| Storage Conditions | Store tightly sealed, cool, and dry; protect from light |
| Solubility | Soluble in water; forms red complexes with calcium ions |
Applications
• Biological staining: calcium deposits, mineralization, osteogenesis
• Histology and microscopy workflows
• Calcium quantification assays and research protocols
• Analytical chemistry: metal complexation and dye studies
• General laboratory research requiring anthraquinone-based dyes
Quality & Compliance
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Manufactured under controlled conditions for high assay consistency
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Low impurity profile suitable for biological and analytical applications
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Complies with applicable chemical handling and GHS guidelines
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Batch-specific COA available upon request
Packaging & Availability
Supplied in sealed, light-protected laboratory-grade containers to maintain dye stability. Standard pack sizes include:
-
25 g
-
100 g
Custom quantities available upon request.
Safety Information
GHS Classification:
Eye Irrit. 2
Skin Irrit. 2
Hazard Statements:
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Causes skin and eye irritation
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Avoid inhalation of dust
-
Use standard PPE during handling
Ordering Information
| Catalog No. | Product Description | Pack Size |
|---|---|---|
| ARS-99-25 | Alizarin Red S, Powder, ≥99% Purity | 25 g |
| ARS-99-100 | Alizarin Red S, Powder, ≥99% Purity | 100 g |
| ARS-99-CUST | Alizarin Red S, Powder, ≥99% Purity | Custom |