Erythrosin B Dinatriumsalz ≥80%, Sigma-Aldrich®

Lieferant: SIGMA-ALDRICH MICROSCOPY
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Synonyms: Erythrosin 239C.I. 45430

M-Clarity™ Qualitätsstufe = MQ100

45690-50G-FEA 150 CHF
45690-50G-F 45690-10G-F
Erythrosin B Dinatriumsalz ≥80%, Sigma-Aldrich®
Erythrosin B Dinatriumsalz

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.

Formel: C₂₀H₆I₄Na₂O₅
MW: 879,86 g/mol
Flash-Pt: 182 °C (geschlossener Tiegel)
MDL Number: MFCD00144257
CAS-Nummer: 16423-68-0
EINECS: 240-474-8

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Spezifikation Testergebnisse

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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