Erythrosin B disodium salt ≥80%, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
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Warning
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M-Clarity™ quality level = MQ100
45690-10G-F
45690-50G-F
45690-10G-FEA
37.1
EUR
45690-10G-F
45690-50G-F
Erythrosin B disodium salt ≥80%, Sigma-Aldrich®
Erythrosin B disodium salt
Erythrosin extra bluish is a brown color powder, that is soluble in ethanol and water. Its pH ranges from 2,5 to 4. It is used in color filters, light emitting diodes, cosmetics, hair dyes and more. It has several biological applications like detecting gene expression, treating age related macular degeneration, diabetes, obesity and more.
Formula:
C₂₀H₆I₄Na₂O₅ Flash Pt: 182 °C (closed cup) |
MDL Number:
MFCD00144257 CAS Number: 16423-68-0 EINECS: 240-474-8 |
Specification Test Results
Appearance (colour) | Red to very dark red and red-brown and very dark red-brown |
Appearance (form) | Powder or crystals |
Assay (gravimetr.) | ≥80% |
Thin layer chromatogr. | Corresponds to standard |
Solubility (colour) | Red to very dark red |
Solubility (turbidity) | Report result |
Solubility (method) | 0.1 g in 10 ml water |
Loss on drying | ≤10% |
Wavelength (1) (UV) | 520 - 530 nm |
Extinction (1%/1 cm) (1) (UV) | ≥800 |
Solvent (UV) | H₂O+1 ml 1% sodium carbonate |
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