The molecule is a primary aliphatic ammonium ion which is obtained from streptothricin F by protonation of the guanidino and amino groups and deprotonation of the carboxylic acid group. It is a primary aliphatic ammonium ion, a monocarboxylic acid anion and a guanidinium ion. It is a conjugate acid of a streptothricin F acid.
(4S,5S)-5-[(1R)-2-azaniumyl-1-hydroxyethyl]-2-[[(2R,3R,4S,5R,6R)-3-[[(3S)-3,6-bis(azaniumyl)hexanoyl]amino]-5-carbamoyloxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]amino]-4,5-dihydro-1H-imidazol-3-ium-4-carboxylate