The molecule is a guanidinium ion obtained by protonation of the two imino nitrogens of mitoguazone; major species at pH 7.3. It is a conjugate acid of a mitoguazone.
diaminomethylidene-[(E)-[(1E)-1-(diaminomethylideneamino)azaniumylidenepropan-2-ylidene]amino]azanium