The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
An organic heterotetracyclic compound that is naphtho[2,3-f]quinoline-7,12-dione carrying two additional hydroxy groups at positions 5 and 6. Used as an acid-base indicator. Between pH 0.0 and pH 1.6 it changes from pink to yellow, and between pH 6.0 and pH 7.6 it changes from yellow to green.
Synonyms:
exact_synonym:
5,6-dihydroxynaphtho[2,3-f]quinoline-7,12-dione
related_synonym:
C.I. 67410; Formula=C17H9NO4; InChI=1S/C17H9NO4/c19-14-8-4-1-2-5-9(8)15(20)12-11(14)10-6-3-7-18-13(10)17(22)16(12)21/h1-7,21-22H; InChIKey=JROURLWMOZCGJV-UHFFFAOYSA-N; SMILES=Oc1c(O)c2ncccc2c2C(=O)c3ccccc3C(=O)c12; alizarin blue R