China 100% Safe Delivery CAS 52190-28-0 1- (benzo[d][1, 3]dioxol-5-yl) -2-Bromopropan-1-One BMK CAS No. 52190-28-0, Find details about China Chemical Raw Material, Medical Intermediate from 100% Safe Delivery CAS 52190-28-0 1- (benzo[d][1, 3]dioxol-5-yl) -2-Bromopropan-1-One BMK CAS No. 52190-28-0