Noradrenaline

The neurotransmitter noradrenaline, similar to adrenaline but differing by a carbon atom, was discovered in the sympathetic nervous system. This discovery led to an important understanding of nerve impulses.
 Ulf Svante von Euler Sweden 1946 Noradrenaline

The neurotransmitter noradrenaline, similar to adrenaline but differing by a carbon atom, was discovered in the sympathetic nervous system. This discovery led to an important understanding of nerve impulses.