The Caffeine molecule - rotatable in 3 dimensions

This molecule can be moved by holding down the left mouse button and dragging. The right button gives many options.
Start .. stop rotation
Click on the interactive links below.

Caffeine - found in both tea and coffee - is an alkaloid.
Notice the alternating carbon and nitrogen atoms (grey and blue respectively) in the two rings.
The red atoms are oxygen (double bonds in this view), and the white atoms are hydrogen.

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