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45690

Sigma-Aldrich

Erythrosin extra bläulich

for microscopy (Bact., Hist.), adsorption and fluorescent indicator

Synonym(e):

2′,4′,5′,7′-Tetraiodofluorescein Dinatriumsalz, Iodeosin, Säurerot 51

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About This Item

Empirische Formel (Hill-System):
C20H6I4Na2O5
CAS-Nummer:
16423-68-0
Molekulargewicht:
879.86
Farbindexnummer:
45430
Beilstein:
1443945
EG-Nummer:
240-474-8
MDL-Nummer:
MFCD00144257
UNSPSC-Code:
12171500
PubChem Substanz-ID:
329756903
NACRES:
NA.47

Qualität

adsorption and fluorescent indicator
for microscopy (Bact., Hist.)

Qualitätsniveau

100

Form

solid

Methode(n)

titration: suitable

SMILES String

[Na+].[Na+].[O-]c1c(I)cc2c(Oc3c(I)c([O-])c(I)cc3C24OC(=O)c5ccccc45)c1I

InChI

1S/C20H8I4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;/q;2*+1/p-2

InChIKey

RAGZEDHHTPQLAI-UHFFFAOYSA-L

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Allgemeine Beschreibung

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 etc. It has several biological applications like detecting gene expression, treating age related macular degeneration, diabetes, obesity etc.

Piktogramme

Exclamation markEnvironment
GHS07,GHS09

Signalwort

Warning

H-Sätze

H302 - H411

Gefahreneinstufungen

Acute Tox. 4 Oral - Aquatic Chronic 2

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

359.6 °F - closed cup

Flammpunkt (°C)

182 °C - closed cup

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Sigma-Aldrich

T8154

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Xanthenes form to an important class of dyes which are widely used. Most of them present three acid-base groups: two phenolic sites and one carboxylic site. Therefore, the pKa determination and the attribution of each group to the corresponding pKa
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