4H-1-Benzopyran-4-one, 8-((dimethylamino)methyl)-2-ethyl-7-hydroxy-, hydrochloride 67195-67-9 8-(Dimethylamino)methyl-2-ethyl-7-hydroxychromone hydrochloride CHROMONE, 8-(DIMETHYLAMINO)METHYL-2-ETHYL-7-HYDROXY-, HYDROCHLORIDE Chromone, 8-(dimethylaminomethyl)-2-ethyl-7-hydroxy-, hydrochloride