"They're far and away the most complicated molecules ever found in nature; certainly we've never heard of anyone who was able to synthesize even one."

It's a complicated molecule and hence makes me nervous.

Dyotropic reactions can be a useful step in making large and complicated molecules.

It makes a very complicated molecule when it is heated.

This might off-set the increased cost of making a more complicated molecule.

Epoxides are useful because with them very complicated molecules can be made quickly.

They produce a huge array of complicated molecules, not only to sustain themselves but to manipulate animals.

The fusion is done with a catalyst, a rather complicated molecule.

I suggest that the complicated molecules get together when they happen to stick to the surfaces of these lumps.

First, I build chemical foods into complicated molecules of the required types.