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There is a page named "File:1-chloro-2,4-dinitrobenzene.JPG" on Wikipedia
string: Aleksander Sobolewski Wikimedia username: Alekssobolewski URL: http://commons.wikimedia.org/wiki/User:Alekssobolewski determination method: SHA-1...(4,017 × 2,616 (936 KB)) - 07:32, 13 March 2023
