Chloramphenicol (Standard) is the standard substance of Chloramphenicol, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Chloramphenicol (Chloromycetin) is a broad-spectrum antibiotic that inhibits the biosynthesis of bacterial proteins. Chloramphenicol acts primarily on the 50S subunit of the bacterial 70S ribosome and is active against peptidyltransferases, inhibiting the formation of peptide bonds.