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English German chemische Struktur von 3-Methyl-1H-pyrazole author name string: NadirSH Wikimedia username: NadirSH URL: https://commons.wikimedia.org/wiki/User:NadirSH
DescriptionPyrazole simple structure.png Chemical structure of Pyrazole Date 23 June 2006 Source http://en.wikipedia.org/wiki/Simple_aromatic_ring Author