3d image of xanthene skeletal formula

xanthene 10h-9-oxaanthracene 9h-xanthene organic compound dyes derivatives substance matter material component agent stuff reagent functional group precursor synthesis reaction production building block fluorescein eosins rhodamines fluorescent phthalic anhydride resorcinol 3-aminophenol molecule molecular formula skeletal structural structure geometry ball stick chemistry chemical science scientific research organic 3d bioactive cell biochemistry biomolecule tautomer isomer stereoisomer