Molecular Models and DNA StructuresSilhouettes and abstract representations of molecules with varying colors against different backgrounds, illustrating molecular structures and DNA. Caffeine molecular model. Caffeine acts as a central nervous system stimulant. 295 assets in this story1815-194908736188-556420571525-281493041525-281493414197-635909904197-635575561525-268302224445R-53681525-252394895507-380253751525-258992234128-200404224128R-141819121589R-110907964128-1114936491525-258204361525-239279674128R-237676188-651804791525-243761631525-229679054448R-219762101525-259134204128R-196571525-217490674128-186318811525-252843621815-180389631525-236832241525-245056491525-240843121525-260512606188-580584064128R-131521525-207714581815R-131833911525-236694461525-205287995507-436058595507-374926904128R-136820116188-581355704128R-139283834128-156599091525-207119971525-228612631525-207691331525-262750631525-259133824009-V1111133771525-212521901589-513170671828R-768004286-358395507-412904961815R-131833971525-272212031525-235667944128R-146069586188-560394794128-15660096990-44981525-207714486188-655405576188-581905791525-260512611525-269760741525-207714596188-623305344128-158158081828R-768016188-581355831439R-10947605514-676175341525-207713981525-217490384128-1115529066188-556096611525-236804931525-256279336188-555188961525-758713521525-259133781525-207713965507-478665261525-243760271525-204608711525-757265511525-269760751525-207691014128-158156801815R-1051021525-269133081525-254223161525-275538231525-279747361525-207714474128R-113101001525-757051624128-28767017 PREVIOUS of 3 NEXT