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45690

Sigma-Aldrich

Erythrosin extra bluish

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

Synonym(s):

2′,4′,5′,7′-Tetraiodofluorescein disodium salt, Acid Red 51, Iodoeosin

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About This Item

Empirical Formula (Hill Notation):
C20H6I4Na2O5
CAS Number:
16423-68-0
Molecular Weight:
879.86
Colour Index Number:
45430
Beilstein:
1443945
EC Number:
240-474-8
MDL number:
MFCD00144257
UNSPSC Code:
12171500
PubChem Substance ID:
329756903
NACRES:
NA.47

grade

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

Quality Level

100

form

solid

technique(s)

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

InChI key

RAGZEDHHTPQLAI-UHFFFAOYSA-L

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General description

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.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302 - H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

359.6 °F - closed cup

Flash Point(C)

182 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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