... / 4-Methyl-7-hydroxyl coumarinThe same name7-HYDROXY-4-METHYLCOUMARIN , COUMARIN 47-Hydroxy-4-methyl-2H-1-benzopyran-2-one, 4 ... -7Melting point188.5-190 Celsius degree SolubilitySoluble in ethanol, acetic acid, alkali solution and ammonia, slightly soluble in hot water, ether ...