title: 3,6-Dimethyl-N,N-bis-(1-phenyl-eth-yl)-1,4-dihydro-1,2,4,5-tetra-zine-1,4-dicarboxamide.
abstract: In the title mol-ecule, C(22)H(26)N(6)O(2), the central tetra-zine ring exhibits a boat conformation, and the two phenyl rings form a dihedral angle of 88.39 (6)°. In the crystal, weak N-H⋯O and C-H⋯O hydrogen bonds link mol-ecules into layers parallel to the ab plane.
authors.affiliation: College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014,  People's Republic of China.
authors.forename: Guo-Wu
authors.initials: GW
authors.lastname: Rao
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Xiao-Jing
authors.initials: XJ
authors.lastname: Lu