1 "Fișier:4-Hydroxybenzoic-acid-3D-balls.png".

Fișier:4-Hydroxybenzoic-acid-3D-balls.png

Description4-Hydroxybenzoic-acid-3D-balls.png Ball and stick model of the 4-hydroxybenzoic acid molecule, a hydroxy derivative of benzoic acid. Date 6 November...

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