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Merck

200964

Sigma-Aldrich

Erythrosin B

Dye content ≥95 %

Synonym(s):

Solvent Red 140

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5 G
₩120,785
25 G
₩421,530

₩120,785


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5 G
₩120,785
25 G
₩421,530

About This Item

Empirical Formula (Hill Notation):
C20H8I4O5
CAS Number:
Molecular Weight:
835.89
Colour Index Number:
45430:2
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

₩120,785


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form

powder

Quality Level

composition

Dye content, ≥95%

technique(s)

microbe id | staining: suitable

color

orange to red-orange

mp

303 °C (dec.) (lit.)

solubility

1 M NH4OH: 1 mg/mL
1 M NH4OH: soluble 1 mg/mL, orange to red

ε (extinction coefficient)

≥102000 at 526-534 nm at 0.005 g/L (95% Methanol 5% 0.1M Na2CO3)
≥13000 at 310-318 nm in 1 M NH4OH at 0.005 g/L (95% Methanol 5% 0.1M Na2CO3)
≥32000 at 258-266 nm at 0.005 g/L (95% Methanol 5% 0.1M Na2CO3)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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Show Differences

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This Item
198269E4009R4127
Eosin Y Dye content ~99 %

E4009

Eosin Y

color

orange to red-orange

color

dark red

color

light red to red/pink

color

-

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

1 M NH4OH: 1 mg/mL, 1 M NH4OH: soluble 1 mg/mL, orange to red

solubility

H2O: 1 mg/mL, clear

solubility

ethanol: 1 mg/mL

solubility

H2O: 1 mg/mL (Red to Very Dark Red)

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Application

Erythrosin B has been used as a dye in fluorescence lifetime imaging.[1][2]

Biochem/physiol Actions

Erythrosin B, also called as eosin B, is a xanthene dye.[3] 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.[4][5]

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

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Bright monomeric red fluorescent protein with an extended
fluorescence lifetime
Merzlyak EM
Nature Methods, 4, 555-557 (2007)
Practical and reliable FRET/FLIM pair of fluorescent proteins.
Shcherbo D
BMC biotechnology, 2009-2009 null
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)
Erythrosin B inhibits dopamine transport in rat caudate synaptosomes.
Lafferman JA and Silbergeld EK
Science, 205, :410-:412 (1979)
Zhen Cheng et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 201, 281-287 (2018-05-15)
Because of the serious harm to animals and the environment associated with perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), a rapid, sensitive and low-cost method for detecting PFOS and PFOA is of great importance. In this paper, a novel sensing

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