Neomycin sulfate (Standard) is the standard substance of Neomycin sulfate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Neomycin sulfate (Framycin sulfate) is a broad-spectrum aminoglycoside antibiotic that blocks the synthesis of bacterial proteins in order to exert antimicrobial activity. Neomycin sulfate is commonly used to screen prokaryotic and eukaryotic cells for Neo resistance genes.