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CHEBI:64341 - 2-(4-hydroxyphenylazo)benzoic acid

ChEBI IDCHEBI:64341
ChEBI Name2-(4-hydroxyphenylazo)benzoic acid
Stars
DefinitionAn azo compound that is azobenzene in which one phenyl group is substituted at position 4 by a hydroxy group, while the other phenyl group is substituted at position 2 by a carboxy group. It is used as a matrix in matrix-assisted laser desorption/ionization (MALDI) mass spectrometry.
Last Modified25 August 2023
Submittergerma2
DownloadsMolfile
FormulaC13H10N2O3
Net Charge0
Average Mass242.234
Monoisotopic Mass242.06914
SMILESO=C(O)c1ccccc1/N=N/c1ccc(O)cc1
InChIInChI=1S/C13H10N2O3/c16-10-7-5-9(6-8-10)14-15-12-4-2-1-3-11(12)13(17)18/h1-8,16H,(H,17,18)/b15-14+
InChIKeyDWQOTEPNRWVUDA-CCEZHUSRSA-N
Roles Classification
Chemical Role:
Bronsted acid  A molecular entity capable of donating a hydron to an acceptor (Brønsted base).
Application:
MALDI matrix material  A compound used to form the matrix for MALDI (matrix-assisted laser desorption/ionization) mass spectrometry. MALDI matrix materials are crystalline compounds with a fairly low molecular weight, so as to allow facile vaporization, have strong absorption at UV or IR wavelengths (to rapidly and efficiently absorb laser irradiation), generally contain polar groups (enabling them to be used in aqueous solutions) and are frequently acidic (so assisting ionisation of the compound being studied, which is contained within the matrix material).
ChEBI Ontology
Outgoing Relation(s)
2-(4-hydroxyphenylazo)benzoic acid (CHEBI:64341) has functional parent azobenzene (CHEBI:190358)
2-(4-hydroxyphenylazo)benzoic acid (CHEBI:64341) has role MALDI matrix material (CHEBI:64345)
2-(4-hydroxyphenylazo)benzoic acid (CHEBI:64341) is a monoazo compound (CHEBI:48959)
2-(4-hydroxyphenylazo)benzoic acid (CHEBI:64341) is a monocarboxylic acid (CHEBI:25384)
2-(4-hydroxyphenylazo)benzoic acid (CHEBI:64341) is a phenols (CHEBI:33853)
IUPAC Name 
2-[(4-hydroxyphenyl)diazenyl]benzoic acid
Synonyms  Source
HABAChemIDplus
o-(p-hydroxyphenylazo)benzoic acidChemIDplus
2-(p-hydroxyphenylazo)benzoic acidChemIDplus
2-(4'-hydroxyphenylazo)benzoic acidChEBI
2-((4'-HYDROXYPHENYL)-AZO)BENZOIC ACIDDrugBank
HBABAChEBI
Manual XrefsDatabases
DB07880DrugBank
HABPDBeChem
Registry NumbersSources
Reaxys:1842696Reaxys
Reaxys:1842697Reaxys
CAS:1634-82-8ChemIDplus
Citations