The title compound, C(14)H(24)N(4)O(3), was synthesized by the reaction of geranyl and 3-methyl-4-nitro-imino-1,3,5-oxadiazinane. In the crystal structure, mol-ecules are assembled by weak inter-molecular C-H⋯O hydrogen bonds. The nitryl and the long carbon chain are located on the same side of the C=N bond due to the two weak intra-molecular C-H⋯N hydrogen bonds; the configuration of the oxadiazinane is Z.