Eosin Y

CAT: 0804-HY-D0505-02Size: 10 gDry Ice: NoHazardous: No

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CAT#:0804-HY-D0505-02Size:10 g

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Description

Eosin Y (Acid Red 87 free base) is a soluble acid red dye molecule. Eosin Y has a wide application in organic synthesis as a photoredox catalyst[1].

CAS Number

15086-94-9

Product Name Alternative

Acid Red 87 (free base)

UNSPSC

12171500

Hazard Statement

H302, H315, H319, H335

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Others

Assay Protocol

https://www.medchemexpress.com/eosin-y.html

Purity

99.42

Solubility

DMSO : 125 mg/mL (ultrasonic)

Smiles

O=C1OC2(C3=C(OC4=C2C=C(Br)C(O)=C4Br)C(Br)=C(O)C(Br)=C3)C5=C1C=CC=C5

Molecular Formula

C20H8Br4O5

Molecular Weight

647.89

Precautions

H302, H315, H319, H335

References & Citations

[1]Hari DP, et al. Synthetic applications of eosin Y in photoredox catalysis. Chem Commun (Camb) . 2014;50 (51) :6688-6699.|[2]Poulios, I., et al. (2003) . Photooxidation of eosin Y in the presence of semiconducting oxides. Applied Catalysis B: Environmental, 41 (4), 345-355.

Shipping Conditions

Room Temperature

Storage Conditions

4°C (Powder, protect from light, stored under nitrogen)

Scientific Category

Dye Reagents

Clinical Information

No Development Reported

Citation 01

Anal Chem. 2025 Jun 3;97 (21) :11099-11109.|Sci Rep. 2025 Jul 8;15 (1) :24580.|Int J Chron Obstruct Pulmon Dis. 2024 Aug 8:19:1819-1834.

Chemical Information

2',4',5',7'-Tetrabromofluorescein

Bromoeosin is an organobromine compound. It is functionally related to a fluorescein (lactone form).

CAS Number	15086-94-9
PubChem CID	27020
IUPAC Name	2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
Molecular Formula	C20H8Br4O5
Molecular Weight	647.9
XLogP	6.2
Topological Polar Surface Area	76
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	0
Heavy Atom Count	29
Formal Charge	0
Complexity	645

SMILES

C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)Br)O)Br)Br)O)Br

InChI

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

InChIKey

DBZJJPROPLPMSN-UHFFFAOYSA-N

Chemical Structure

2D Structure

CAS: 15086-94-9

CID: 27020

Formula: C20H8Br4O5

MW: 647.9

Interactive 3D Structure

Loading 3D structure...

View on PubChem Raw 3D data

Computed Properties

Property	Value
Molecular Weight	647.9
XLogP3	6.2
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	0
Exact Mass	647.70642
Monoisotopic Mass	643.71052
Topological Polar Surface Area	76 Å²
Heavy Atom Count	29
Formal Charge	0
Complexity	645
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1
Compound Is Canonicalized	Yes

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Alternative Products

Catalog	Name
HS2017	Eosin
T86389-01	Ethyl eosin
GT8630-25g	Eosin B
sc-252776	Eosin Y
sc-396601	Hemacolor, Eosin

Eosin Y

Chemical Information

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