2,3-Dimethyl-8-(dimethylamino)methyl-7-hydroxychromone hydrochloride 4H-1-Benzopyran-4-one, 8-((dimethylamino)methyl)-7-hydroxy-2,3-dimethyl-, hydrochloride 67195-71-5 CHROMONE, 2,3-DIMETHYL-8-(DIMETHYLAMINO)METHYL-7-HYDROXY-, HYDROCHLORIDE