Term Name:	3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid
Synonyms:	1,2-Dihydroxy-3-sulfoanthraquinone, 1,2-Dihydroxy-3-sulfonate-9,10-anthraquinone, 3,4-Dihydroxy-2-anthraquinonesulfonic acid, 3,4-Dihydroxy-9,10-anthraquinone-2-sulfonic acid, 3,4-Dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid, 3-Alizarinsulfonic acid, 9,10-Dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid, ALIZARIN RED, Alizarin Red S, Alizarin Red S free acid, Az-R
Definition:	A dihydroxyanthraquinone that is 1,2-dihydroxyanthraquinone compound carrying an additional sulfo substituent at the 3-position. The monosodium salt is the biological stain 'alizarin red S'.
Ontology:	ChEBI [CHEBI:40863]  ( EBI )