Directly above view of caffeine chemical formula with roasted coffee beans over orange background
Schlüsselwörter
caffeine,
chemical,
formula,
roasted,
hot drink,
bean,
orange,
science,
group,
atom,
chemistry,
natural,
closeup,
coloured,
plain,
connection,
center,
object,
molecular,
structure,
molecular,
still,
life,
red,
colours,
blue,
brown,
nobody,
research,
black,
stem,
food
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