2-브로모-4,5-에틸렌디옥시아세토페논2'-Bromo-4',5'-(ethylenedioxy)acetophenone98%2'-Bromo-4',5'-(ethylenedioxy)acetophenone 98%Ethanone, 1-(7-broMo-2,3-dihydro-1,4-benzodioxin-6-yl)-1-(6-BROMO-2,3-DIHYDROBENZO[B][1,4]DIOXIN-7-YL)ETHANONE2′-Bromo-4′,5′-(ethylenedioxy)acetophenone, CAS 59820-90-5