The molecule is a seven-atom linear chain with only single bonds. Number the atoms 1 to 7.
- Atoms 1, 2, 4, 6, 7 are carbons.
- Atom 3 is a tertiary nitrogen, bonded to C2, C4, and one methyl substituent (-CH3).
- Atom 5 is a secondary nitrogen, bonded to C4 and C6, with one N-H.
- C2, C4, and C6 each carry a terminal methylene (=CH2) via a double bond.