Alizarin
AR
Reagent
Code: #111619
Alias
Alizarin; 1,2-dihydroxyanthraquinone, 1,2-dihydroxy-9,10-anthracendione, acid mordant red B, acid mordant red 11
CAS Number
72-48-0
science Other reagents with same CAS 72-48-0
blur_circular Chemical Specifications
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Molecular Information
Weight
240.21 g/mol
Formula
C₁₄H₈O₄
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Registry Numbers
EC Number
200-782-5
MDL Number
MFCD00001201
thermostat
Physical Properties
Melting Point
287 °C
Boiling Point
430 °C
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Storage & Handling
Density
1.06 g/mL at 20 °C
Storage
room temperature
description Product Description
Used extensively as a dye in the textile industry, particularly for coloring fabrics like cotton and wool. It is valued for its ability to produce vibrant red and orange hues. In biological staining, it serves as a crucial reagent for identifying calcium deposits in tissues, aiding in bone and cartilage studies. Additionally, it is employed in analytical chemistry as an indicator for metal ion detection, especially aluminum and calcium. Its application extends to art restoration, where it helps in matching and replicating historical paint colors.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Absorbance (20 mg/L in Methanol, 429.0-433.0 nm) | >= 0.4 |
| Absorbance (20 mg/L in Methanol, 429.0-433.0 nm) | >= 0.4 |
| Ignition Residue (As Sulfate) | 0-2 |
| Indicator pH | 5.8-13.0 |
| Max Nm (Methanol) | 429.0-433.0 |
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