Synonyms: Thiophene, 3,3'-(1-cyclopentene-1,2-diyl)bis[5-(4-methoxyphenyl)-2-methyl-, 3,3'-(1-Cyclopentene-1,2-diyl)bis[5-(4-methoxyphenyl)-2-methylthiophene]; 1,2-Bis-[5'-(4''-methoxyphenyl)-2'-methylthien-3'-yl)cyclopentene