2-((3,5-DIMETHYL-2H-PYRROL-2-YLIDENE)ME&;2-[(3,5-Dimethyl-2H-pyrrol-2-ylidene)methyl]-3,5-dimethyl-1H-pyrrole monohydrochloride;3, 5, 3μ, 5μ-Tetramethyl-1H, 2μH-2, 2μ-methanylylidene-bis-pyrrole hydrochloride
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