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Eosin Y (C.I. 45380)

CAT: 0063-31787521-50gSize: 50 gDry Ice: NoHazardous: No
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CAS Number
17372-87-1
Molecular Formula
C20H6Br4Na2O5
Molecular Weight
691.85

Chemical Information

Eosin

Eosin YS dye is an organic sodium salt that is 2',4',5',7'-tetrabromofluorescein in which the carboxy group and the phenolic hydroxy group have been deprotonated and the resulting charge is neutralised by two sodium ions. It has a role as a fluorochrome and a histological dye. It is an organobromine compound and an organic sodium salt. It contains a 2',4',5',7'-tetrabromofluorescein(2-).

CAS Number17372-87-1
PubChem CID11048
IUPAC Namedisodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate
Molecular FormulaC20H6Br4Na2O5
Molecular Weight691.9
Topological Polar Surface Area89.5
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count1
Heavy Atom Count31
Formal Charge0
Complexity796
SMILES
C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].[Na+].[Na+]
InChI
InChI=1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
InChIKey
SEACYXSIPDVVMV-UHFFFAOYSA-L
Chemical Structure
2D Structure
2D structure of Eosin
CAS: 17372-87-1
CID: 11048
Formula: C20H6Br4Na2O5
MW: 691.9
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight691.9
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count1
Exact Mass691.67031
Monoisotopic Mass687.67441
Topological Polar Surface Area89.5 Ų
Heavy Atom Count31
Formal Charge0
Complexity796
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count3
Compound Is CanonicalizedYes

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Alternative Products

CatalogName
E00910Eosin C.I. No. 45380
RRBD92-XEosin Y C.I. 45380
E00913-01Eosin Acid C.I. No. 45380
RRBD9-UEosin Y Certified C.I. 45380
GT2503-25gEosin Y (C.I. 45380:2)
02740-50Eosin Y, C.I. 45380, certified
TRC-E561015-5GEosin Acid C.I. No. 45380 (Technical Grade)
GT2884-25gEosin Y disodium salt (C.I. 45380)
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