Chromone-3-carboxylic acid is a chromone derivative. Its potential as an antioxidant in charge transfer (CT) processes has been assessed by surface-enhanced Raman scattering (SERS) analysis of chromone 3-carboxylic acid adsorbed on silver colloidsChromone-3-carboxylic acid may be used in the preparation of: . chromane-2,4-diones . chromone-3-carboxamides . 5-(2-hydroxyphenyl)isoxazole . chromone-2-carboxamides . chromone-2-carboxamido-3-esters Chromone-3-carboxylic acid is a chromone derivative. Its potential as an antioxidant in charge transfer (CT) processes has been assessed by surface-enhanced Raman scattering (SERS) analysis of chromone 3-carboxylic acid adsorbed on silver colloids Chromone-3-carboxylic acid may be used in the preparation of: . chromane-2,4-diones . chromone-3-carboxamides . 5-(2-hydroxyphenyl)isoxazole . chromone-2-carboxamides . chromone-2-carboxamido-3-esters