英文名称
4-<<3-<25,26-dimethoxy-3,5,9,23-tetramethyl-13,16,19,27-tetraoxatetracyclo<19.3.1.1.1>heptacosa-1(25),2,5,7,9,11(26),21,23-octaen-4-ylidene>-1-propenyl>>-25,26-dimethoxy-3,5,9,23-tetramethyl-13,16,19-trioxa-27-oxoniatetracyclo<19.3.1.1.1>heptacosa-1(25)