The Penicillin G 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.
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Click on the interactive links below, or simply mouse over the green writing

The grey spheres represent carbon atoms, the red ones oxygen and the white ones hydrogen. The two blue spheres are nitrogen atoms and the single yellow sphere is a sulphur atom.

In the middle of the molecule is a square section, which gives penicillin its antibiotic effect. This is called a beta lactam ring.

This form of penicillin - also called Penicillin G - has a benzyl group at one end of the molecule. This contains a 6-membered benzene ring.

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