This image of a simple structural formula is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
اورجینال یوکلمه گوندهلیگی
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2004-05-11 18:27 SudhirP 209×132×8 (6393 bytes) Structure Of Phenanthrene; Image created by me, after learning about phenanthrene in college.