18188-80-2 2-(Diethylamino)-N-(4-hydroxy-5-oxo-1,3,6-cycloheptatrien-1-yl)acetamide hydrochloride 5-Diethylaminoacetamidotropolone hydrochloride Acetamide, 2-(diethylamino)-N-(4-hydroxy-5-oxo-1,3,6-cycloheptatrien-1-yl)-, monohydrochloride