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E6003

Eosin Y disodium salt

Dye content ≥85%, Powder

Synonym(s):

2′,4′,5′,7′-Tetrabromofluorescein disodium salt, Acid Red 87, Bromo acid J. TS, XL, or XX, Bromofluorescein, Bronze Bromo ES, D&C;Red No. 22, Eosin yellowish

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25 G

$53.40

100 G

$162.00

250 G

$317.00

$53.40


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About This Item

Empirical Formula (Hill Notation):
C20H6Br4Na2O5
CAS Number:
Molecular Weight:
691.85
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
EC Number:
241-409-6
MDL number:
Colour Index Number:
45380
Beilstein/REAXYS Number:
3586809

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Product Name

Eosin Y disodium salt, ≥85 % by HPLC

InChI key

SEACYXSIPDVVMV-UHFFFAOYSA-L

InChI

1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2

SMILES string

[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24

form

powder

technique(s)

titration: suitable

color

brown

pH

6.55 (29 °C, 84 °F)

mp

255 — 270 °C (491 - 518 °F at 977.9 hPa)

solubility

H2O: 1 mg/mL

density

1.018 g/cm3

Quality Level

composition

, ≥85% HPLC

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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1 of 4

This Item
E43821.04134539211
technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

-

technique(s)

-

color

brown

color

brown

color

-

color

red-brown

solubility

H2O: 1 mg/mL

solubility

H2O: 1 mg/mL

solubility

300 g/L

solubility

water: 50 mg/mL

form

powder

form

powder

form

solid

form

solid

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

Application

Eosin Y disodium salt has been used for determining sperm viability. The swollen and stained spermatozoa were considered dead.[1] In corneal epithelium, it has been used in the procedure of immunohistological staining.[2]

Biochem/physiol Actions

Eosin Y is a xanthene dye and is used for the differential staining of connective tissue and cytoplasm. In histopathology, it is applied as a counterstain after hematoxylin and before methylene blue. It is also used as a background stain, thereby giving contrast to the nuclear stains.[3][4]

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

376.9 °F - Pensky-Martens closed cup

flash_point_c

191.6 °C - Pensky-Martens closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves


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A comparison of lyophilized amniotic membrane with cryopreserved amniotic membrane for the reconstruction of rabbit corneal epithelium.
Ahn J, et al.
Biotechnology and Bioprocess Engineering: BBE, 10, 262-269 (2005)
Quality of sperm obtained by penile vibratory stimulation and percutaneous vasal sperm aspiration in men with spinal cord injury.
Qiu Y, et al.
Journal of Andrology, 33, 1036-1036 (2012)
Bancroft JD
Theory and Practice of Histological Techniques (2008)
Histophatologic Techniques null
Patricia S Nielsen et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 26(3), 404-413 (2012-11-24)
Cellular proliferation is correlated with the progression of melanoma. Accordingly, the proliferation index of H&E-stained thin melanomas was recently included in the staging system of the American Joint Committee on Cancer. Yet, the immunohistochemical markers of proliferation phosphohistone H3 and

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