Naphthalocyanine is a cross-shaped organic molecule consisting of 48 carbon, 8 nitrogen and 26 hydrogen atoms.

It is a derivative of phthalocyanine, differing by having 4 extra carbon rings, one on each "arm."

IBM Research labs used it for developing single-molecule logic switches[1] and visualizing charge distribution in a single molecule.

[2][3] Naphthalocyanine derivatives have a potential use in photodynamic cancer treatment.

This article about a heterocyclic compound is a stub.