4-oxo-4-(1H-pyrrol-2-yl)butanoic acid

2,3,4,5-tetrakis(trifluoromethylsulfanyl)-1H-pyrrole

2-(3-methylphenyl)-1H-pyrrole

吡咯-2,4-二甲腈

pyrrole-2,5-biscarbonitrile