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200964

Erythrosin B

Dye content ≥95 %

Synonym(s):

Solvent Red 140

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About This Item

Empirical Formula (Hill Notation):
C20H8I4O5
CAS Number:
15905-32-5
Molecular Weight:
835.89
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24851985
EC Number:
240-046-0
Colour Index Number:
45430:2
MDL number:
MFCD00005044
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form

powder

Quality Segment

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

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

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

11 - Combustible Solids

WGK

WGK 2

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)

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