2,5-dimethylthiophene 1,1-dioxide

2,5-dimethyl-3,4-diphenylthiophene

2,5-二甲基噻吩-3-羰酰氯

(4-chlorophenyl)-(2,5-dimethylthiophen-3-yl)methanone

(2,5-dimethylthiophen-3-yl)-thiophen-2-ylmethanone