3d image of chromone skeletal formula

chromone chromen-4-one 4h-1-benzopyran-4-one 4-chromone benzopyrone 4h-chromen-4-one benzo-gamma-pyrone 1-benzopyran-4-one benzopyran pyran ring phenylpropanoid aromatic aromaticity heterocycle polycyclic substance matter material compound component agent stuff reagent functional group precursor synthesis reaction production building block molecule molecular formula skeletal structural structure geometry ball stick chemistry science scientific research organic chemical 3d isomer isolated white background model