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E8886

Erythrosin extra bluish

Name: Erythrosin extra bluish
Brand: SIGMA

Dye content, ≥80%, certified by the Biological Stain Commission, powder

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

NACRES:

NA.47

PubChem Substance ID:

24894685

UNSPSC Code:

12171500

EC Number:

240-474-8

MDL number:

MFCD00144257

Beilstein/REAXYS Number:

1443945

Colour Index Number:

45430

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Properties

Product Name

Erythrosin extra bluish, certified by the BSC

agency

certified by the BSC

Quality Segment

200

form

powder

composition

Dye content, ≥80%

pH

6.4 (30.3 °C)

mp

315 °C

solubility

water: 1 mg/mL, clear

density

0.625-0.731 g/cm³ at 30.1 °C

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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

Description

General description

Erythrosin extra bluish is soluble in ethanol and water. It is a brown powder, with a pH range of 2.5 to 4. It is used in color filters, light emitting diodes, cosmetics and hair dyes. It has been used in many biological applications such as, detecting gene expression, treating age related macular degeneration, diabetes and obesity.

Application

Certified for use in the Jackson stain for plant anatomy; counterstain for alum hematoxylin; Kreyberg′s method for keratin and mucus.

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pictograms

GHS07,GHS09

signalword

Warning

hcodes

H302,H411

pcodes

P264 - P270 - P273 - P301 + P312 - P391 - P501

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

359.6 °F - closed cup

flash_point_c

182 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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R W Sabnis.

Handbook of Acid-Base Indicators (2007)