MilliporeSigma
All Photos(3)

200964

Sigma-Aldrich

Erythrosin B

Dye content ≥95 %

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
Solvent Red 140
Empirical Formula (Hill Notation):
C20H8I4O5
CAS Number:
Molecular Weight:
835.89
Colour Index Number:
45430:2
EC Number:
MDL number:
PubChem Substance ID:

form

powder

Quality Level

composition

Dye content, ≥95%

mp

303 °C (dec.) (lit.)

solubility

1 M NH4OH: 1 mg/mL
spirit: soluble

λmax

533 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1c(I)cc2c(Oc3c(I)c(O)c(I)cc3C24OC(=O)c5ccccc45)c1I

InChI

1S/C20H8I4O5/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

InChI key

OALHHIHQOFIMEF-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
198269E4009R4127
Erythrosin B Dye content ≥95 %

Sigma-Aldrich

200964

Erythrosin B

Erythrosin B certified by the Biological Stain Commission, Dye content ≥85 %

Sigma-Aldrich

198269

Erythrosin B

Eosin Y Dye content ~99 %

Sigma-Aldrich

E4009

Eosin Y

Rhodamine 6G Dye content ~95 %

Sigma-Aldrich

R4127

Rhodamine 6G

composition

Dye content, ≥95%

composition

Dye content, ≥85%

composition

Dye content, ~99%

composition

Dye content, ~95%

mp

303 °C (dec.) (lit.)

mp

315 °C

mp

-

mp

215 °C

solubility

1 M NH4OH: 1 mg/mL, spirit: soluble

solubility

H2O: 1 mg/mL, clear

solubility

ethanol: 1 mg/mL

solubility

H2O: 1 mg/mL, dark red

λmax

533 nm

λmax

525 nm

λmax

-

λmax

-

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

Application

Erythrosin B has been used as a dye in fluorescence lifetime imaging.

Biochem/physiol Actions

Erythrosin B, also called as eosin B, is a xanthene dye. It belongs to the family of fluorescein dyes. It plays a major role in inhibiting dopamine uptake and high affinity 3H-ouabain binding and ion transport in synaptosomes from rat caudate nucleus.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 6

1 of 6

Eosin B Dye content 95 %

Sigma-Aldrich

212954

Eosin B

Amaranth Dye content 85-95 %

Sigma-Aldrich

A1016

Amaranth

Rose bengal Dye content 95 %

Sigma-Aldrich

330000

Rose bengal

Sunset Yellow FCF Dye content 90 %

Sigma-Aldrich

465224

Sunset Yellow FCF

Tartrazine Dye content ≥85 %

Sigma-Aldrich

T0388

Tartrazine

Rose Bengal lactone 95%

Sigma-Aldrich

328960

Rose Bengal lactone

Erythrosin B inhibits dopamine transport in rat caudate synaptosomes.
Lafferman JA and Silbergeld EK
Science, 205, :410-:412 (1979)
Practical and reliable FRET/FLIM pair of fluorescent proteins.
Shcherbo D
BMC biotechnology, 2009-2009 null
Bright monomeric red fluorescent protein with an extended
fluorescence lifetime
Merzlyak EM
Nature Methods, 4, 555-557 (2007)
Mikael Lindgren et al.
Molecules (Basel, Switzerland), 25(5) (2020-03-07)
A current trend within photo-dynamic therapy (PDT) is the development of molecular systems targeting hypoxic tumors. Thus, type I PDT sensitizers could here overcome traditional type II molecular systems that rely on the photo-initiated production of toxic singlet oxygen. Here
Erythrosin B is a specific inhibitor of high affinity 3H-ouabain binding and ion transport in rat brain
Silbergeld E K
Neuropharmacology, 20, 87-90 (1981)

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