Caffeine molecule. Caffeine is a naturally-occurring alkaloid and a stimulant of the central nervous system. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue) and oxygen (red). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / GREG WILLIAMS |
Bildgröße: | 5770 px × 6058 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |