Heroin drug,molecular model. Atoms are represented as spheres and are colour-coded: carbon (grey),hydrogen (blue-green),oxygen (red) and nitrogen (blue) | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Pasieka, Alfred |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |