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CHEBI:87355 - alizarin blue

ChEBI IDCHEBI:87355
ChEBI Namealizarin blue
Stars
DefinitionAn 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.
Last Modified3 June 2016
SubmitterSteve
DownloadsMolfile
FormulaC17H9NO4
Net Charge0
Average Mass291.262
Monoisotopic Mass291.05316
SMILESO=C1c2ccccc2C(=O)c2c1c(O)c(O)c1ncccc21
InChIInChI=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
InChIKeyJROURLWMOZCGJV-UHFFFAOYSA-N
Roles Classification
Application:
acid-base indicator  An acid or base which exhibits a colour change on neutralization by the basic or acidic titrant at or near the equivalence point of a titration.
ChEBI Ontology
Outgoing Relation(s)
alizarin blue (CHEBI:87355) has role acid-base indicator (CHEBI:50407)
alizarin blue (CHEBI:87355) is a p-quinones (CHEBI:25830)
alizarin blue (CHEBI:87355) is a organic heterotetracyclic compound (CHEBI:38163)
alizarin blue (CHEBI:87355) is a phenols (CHEBI:33853)
IUPAC Name 
5,6-dihydroxynaphtho[2,3-f]quinoline-7,12-dione
Synonyms  Source
alizarin blue RChEBI
C.I. 67410ChEBI
Registry NumbersSources
Reaxys:275972Reaxys
CAS:568-02-5ChemIDplus
CAS:568-02-5NIST Chemistry WebBook