18853-41-3
thiophene-2,4-dicarbonitrile
→
~64%
36157-39-8
thiophene-2,4-dicarboxylic acid
638-00-6
2,4-二甲基噻吩
109512-89-2
γ-Formyl-α-ketoglutarsaeure-diaethylester-diaethylketal