caffeine. mateine, theine, guaranine. chemical formula and 3d model of molecule. c8h10n4o2. atoms with color coding.

caffeine coffee formula chemical molecular mateine theine guaranine structural vector model molecule atom structure equation chemistry atomic composition tea mate compound illustration notation c8h10n4o2 diagram energy line biochemistry cns stimulant psychoactive substance sign symbol icon infographic skeletal science graphic bond chem education design schematic abstract alertness adenosine blocker boost atoms color coding for educational materials scientific articles presentations font circle brand cartoon text drawing logo presentation pattern organ number map screenshot