Skip to Content

Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

For important updates on recent policy changes, please click here for more details.

Merck
CN
All Photos(3)

Key Documents

View All Documentation

E4009

Sigma-Aldrich

Eosin Y

Dye content ~99%, Powder

Synonym(s):

2′,4′,5′,7′-Tetrabromofluorescein, Acid Red 87, Bromo acid J. TS, XL, or XX, Bromofluorescein, Bronze Bromo ES, Eosin yellowish, Solvent red 43

Sign Into View Organizational & Contract Pricing

Select a Size

1 EA
CN¥1,269.34

CN¥1,269.34

Please contact Customer Service for Availability
Request a Bulk Order
All Photos(3)

Select a Size

Change View
1 EA
CN¥1,269.34

About This Item

Empirical Formula (Hill Notation):
C20H8Br4O5
CAS Number:
15086-94-9
Molecular Weight:
647.89
Colour Index Number:
45380:2
EC Number:
239-138-3
MDL number:
MFCD00036189
UNSPSC Code:
12171500
PubChem Substance ID:
24894536
NACRES:
NA.47

CN¥1,269.34

Please contact Customer Service for Availability
Request a Bulk Order

Product Name

Eosin Y, Dye content ~99 %

form

powder

Quality Level

200

composition

Dye content, ~99%

color

light red to red/pink

solubility

ethanol: 1 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1c(Br)cc2c(Oc3c(Br)c(O)c(Br)cc3C24OC(=O)c5ccccc45)c1Br

InChI

1S/C20H8Br4O5/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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
E6003E4382861006
Eosin Y Dye content ~99 %

E4009

Eosin Y

Eosin Y disodium salt Dye content ≥85 %

E6003

Eosin Y disodium salt

Eosin Y disodium salt certified by the BSC

E4382

Eosin Y disodium salt

Eosin B certified by the BSC, Dye content 90 %

861006

Eosin B

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

form

powder

form

powder

form

powder

form

powder

solubility

ethanol: 1 mg/mL

solubility

H2O: 1 mg/mL

solubility

H2O: 1 mg/mL

solubility

H2O: 1 mg/mL, clear, red

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

composition

Dye content, ~99%

composition

Dye content, ≥85%

composition

Dye content, ≥90%

composition

Dye content, 90%

Application

Eosin Y has been used as a stain:
  • to determine the location of the brain sections[1]
  • for staining of fixed liver tissue[2]
  • for histological examination of brain sections from the dorsal hippocampus[3]

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.[4][5]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    SHBN3075
    MKCN1017
    MKCM4754
    MKCL4992
    MKCM1657

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Search for a COA

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    Antonello Mai et al.
    Journal of medicinal chemistry, 51(7), 2279-2290 (2008-03-20)
    A number of new compounds bearing two ortho-bromo- and ortho, ortho-dibromophenol moieties linked through a saturated/unsaturated, linear/(poly)cyclic spacer (compounds 1- 9) were prepared as simplified analogues of AMI-5 (eosin), a recently reported inhibitor of both protein arginine and histone lysine
    An immunohistochemical analysis of SERT in the blood-brain barrier of the male rat brain.
    Young LW, et al.
    Histochemistry and Cell Biology, 144, 321-321 (2015)
    Florian Ménard et al.
    Bioorganic & medicinal chemistry, 17(22), 7647-7657 (2009-10-13)
    This paper reports the synthesis and characterization of a new class of tetrabenzoporphyrins bearing glucosyl or polyamine units on meso positions to improve the targeting of cancer cells. Photocytotoxic activity of these photosensitizers was tested on cell lines HaCaT and
    The effects of simvastatin on hippocampal caspase-3 and Bcl-2 expression following kainate-induced seizures in rats.
    Sun J, et al.
    International Journal of Molecular Medicine, 30, 739-739 (2012)
    Inactivation of NF-kappaB p50 leads to insulin sensitization in liver through post-translational inhibition of p70S6K.
    Gao Z, et al.
    The Journal of Biological Chemistry, 284, 18368-18368 (2009)
    View All Related Papers

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service