Term Name:	alpha-cyano-4-hydroxycinnamic acid
Synonyms:	(2E)-2-cyano-3-(4-hydroxyphenyl)prop-2-enoic acid, 2-cyano-3-(4-hydroxyphenyl)acrylic acid, alpha-Cyano, CHCA
Definition:	A monohydroxycinnamic acid that is 4-hydroxycinnamic acid in which the hydrogen alpha- to the carboxy group is replaced by a cyano group. It is used as a matrix in matrix-assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of peptides and oligonucleotides.
Ontology:	ChEBI [CHEBI:64340]  ( EBI )