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E8886

Sigma-Aldrich

Erythrosin extra bluish

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
Colour Index Number:
45430
Beilstein/REAXYS Number:
1443945
EC Number:
240-474-8
MDL number:
MFCD00144257
UNSPSC Code:
12171500
PubChem Substance ID:
24894685
NACRES:
NA.47

product name

Erythrosin extra bluish, certified by the Biological Stain Commission

grade

certified by the Biological Stain Commission

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

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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.

Suitability

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

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

hcodes

H302,H411

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class

11 - Combustible Solids

wgk_germany

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

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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R W Sabnis.
Handbook of Acid-Base Indicators (2007)
R W Sabnis.
Handbook of Biological Dyes and Stains: Synthesis and Industrial Applications, 544-544 (2010)
Ying-Ju Huang et al.
ChemMedChem, 7(4), 571-577 (2012-02-23)
SecA is a central component of the general secretion system that is essential for bacterial growth and thus an ideal target for antimicrobial agents. A series of fluorescein analogues were first screened against the ATPase activity using the truncated unregulated
Juliana P M L Rolim et al.
Journal of photochemistry and photobiology. B, Biology, 106, 40-46 (2011-11-11)
Several photosensitizers have been used against oral bacteria without standardization. Singlet oxygen ((1)O(2)) is an aggressive chemical species that can kill cells through apoptosis or necrosis. to compare the antimicrobial activity of photodynamic therapy (PDT) with different photosensitizers at the
Anna Carolina Borges Pereira Costa et al.
Archives of oral biology, 56(11), 1299-1305 (2011-06-28)
The effect of erythrosine- and LED-mediated photodynamic therapy (PDT) on planktonic cultures and biofilms of Candida albicans and Candida dubliniensis was evaluated. Planktonic cultures of standardized suspensions (10(6)cells/mL) of C. albicans and C. dubliniensis were treated with erythrosine concentrations of
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