The core of the molecule is a pyridine ring, a six-membered aromatic ring with one nitrogen atom. At the carbon directly adjacent to the ring nitrogen (the 2-position of the pyridine), a side chain is attached.

The side chain is an eight-atom linear chain, in which all positions are carbons except for position 3, which is a nitrogen atom.

Substituents on this main chain:
- Position 3: the nitrogen bearing a methyl group.
- Position 6: the carbon that is a stereogenic center with R configuration, bearing a primary amine group (-NH2).
- Position 7: the carbon carrying a methyl group.

There are no other substituents on the chain or on the pyridine ring.