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File size: 19 KB
MIME type: image/png
The file "Phthalic_anhydride_structural_formula.png" has 1 identical duplication.
- Phthalic anhydride.png . . Edgar181 . . 15:09, 23 December 2009
- Phthalic anhydride structural formula.png . . Draeger (Talk | contribs) . . 13:17, 29 August 2020