The molecule is a guanidinium ion that is the conjugate acid of blasticidin S. It is a guanidinium ion and an antibiotic antifungal agent. It is a conjugate acid of a blasticidin S.
(2S,3S,6R)-6-(4-amino-2-oxopyrimidin-1-yl)-3-[[(3S)-3-azaniumyl-5-[diaminomethylidene(methyl)azaniumyl]pentanoyl]amino]-3,6-dihydro-2H-pyran-2-carboxylate