72 Atom-parts and 40 links Contents: 21 carbon (12 tetra, 9 tribipyr), 13 oxygen (11 ang, 2 mono), 25 hydrogen (22 mono, 3 lin) 11 nitrogen (3 tetra, 6 tribipyr, 2 ang), 1 surphur (ang): 1 phosphorous (tetra). Links: 40 medium grey