(3,4-dimethyl-2-oxochromen-7-yl) ethanesulfonate (3,4-dimethyl-2-oxo-chromen-7-yl) ethanesulfonate ethanesulfonic acid (3,4-dimethyl-2-oxo-7-chromenyl) ester ethanesulfonic acid (2-keto-3,4-dimethyl-chromen-7-yl) ester 91406-11-0 7-Hydroxy-3,4-dimethylcoumarin ethanesulfonate Esuprona [Spanish] Esuprone Esuprone [INN] Esupronum [Latin]