7-Methoxy-3,4-dihydronaphthalen-2-one7-甲氧基-2-萘满酮7-methoxy-1,2,3,4-tetrahydronaphthalen-2-one7-Methoxy-2-tetralone7-Methoxy-2-oxo-1,2,3,4-tetrahydronaphthalene3,4-Dihydro-7-methoxynaphthalen-2(1H)-one 97%7-Methoxy-2-tetralone7-甲氧基-2-四氢萘酮7-METHOXY-2-TETRALONE