You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 9-N,9-N,5,7-tetramethyl-3,5,11,13-tetrazatricyclo[8.3.0.02,6]trideca-1(13),2(6),3,7,9,11-hexaene-4,9-diamine ?
user
C13H16N6
assistant