CHEBI:87117 - erythrosin

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ChEBI Name erythrosin
ChEBI ID CHEBI:87117
Definition An organoiodine compound that is the ring opened tautomer of fluorescein substituted at positions 2, 4, 5 and 7 by iodo groups.
Stars This entity has been manually annotated by the ChEBI Team.
Supplier Information
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Formula C20H10I4O5
Net Charge 0
Average Mass 837.90830
Monoisotopic Mass 837.67070
InChI InChI=1S/C20H10I4O5/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/h1-6,9,18,25H,(H,27,28)
InChIKey WTOSNONTQZJEBC-UHFFFAOYSA-N
SMILES OC(=O)c1ccccc1C1=C2C=C(I)C(=O)C(I)=C2OC2C1C=C(I)C(O)=C2I
Roles Classification
Chemical Role(s): Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
Application(s): fluorescent dye

dye

(via xanthene dye )
View more via ChEBI Ontology
ChEBI Ontology
Outgoing erythrosin (CHEBI:87117) has functional parent fluorescein (acid form) (CHEBI:172923)
erythrosin (CHEBI:87117) has role fluorescent dye (CHEBI:51121)
erythrosin (CHEBI:87117) is a benzoic acids (CHEBI:22723)
erythrosin (CHEBI:87117) is a organoiodine compound (CHEBI:37142)
erythrosin (CHEBI:87117) is a phenols (CHEBI:33853)
erythrosin (CHEBI:87117) is a xanthene dye (CHEBI:37929)
erythrosin (CHEBI:87117) is conjugate acid of erythrosin(2−) (CHEBI:87118)
Incoming erythrosin(2−) (CHEBI:87118) is conjugate base of erythrosin (CHEBI:87117)
IUPAC Name
2-(2,4,5,7-tetraiodo-6-oxido-3-oxo-8a,10a-dihydro-3H-xanthen-9-yl)benzoic acid
Synonyms Sources
2,4,5,7-Tetraiodofluorescein ChemIDplus
acid red 51 (free acid form) ChEBI
erythrosin B free acid ChEBI
Erythrosin(E) ChemIDplus
NSC 4905 ChemIDplus
Registry Number Type Source
548-25-4 CAS Registry Number ChemIDplus
Last Modified
18 May 2021