5-甲基噻吩-2-羧酸甲酯

2-methyl-5-(2-phenylethenyl)thiophene

2-methyl-5-thiophen-2-ylthiophene

5,5-二乙酰基-2,2-联噻吩

1-(5'-methyl-2,2'-bithiophene-5-yl)ethanone