Micronomicin Sulfate is the sulfate salt of Micronomicin, a natural aminoglycoside, broad-spectrum antibiotic discovered and developed by Kyowa Hakko Kogyo Co. The structure was determined as 6’-N-methylgentamicin C1a, and it is similar to Gentamicin C in physicochemical and antimicrobial properties but unlike Gentamicin C, it has remarkable activity against some gentamicin C1a-resistant strains. It targets Gram-positive and Gram-negative bacteria by interfering with bacterial protein synthesis. Micronomicin Sulfate is freely soluble in water.