Erythrosin B disodium salt ≥80%, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
Warning

Synonyms: FD&C Red #3Erythrosin 239Sodium 2',4',5',7'-tetraiodo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)Erythrosine 3BErythrosine sodiumC.I. 45430Erythrosin BAcid Red 51

M-Clarity™ quality level = MQ100

45690-50G-FEA 120 GBP
45690-50G-F 45690-10G-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
MW: 879,86 g/mol
Flash Pt: 182 °C (closed cup)
MDL Number: MFCD00144257
CAS Number: 16423-68-0
EINECS: 240-474-8

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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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