MOPS buffer is widely used in biological and biochemical research for maintaining stable pH conditions. It is particularly effective in cell culture media, electrophoresis, and protein purification processes. In molecular biology, MOPS buffer is commonly employed in RNA gel electrophoresis due to its ability to maintain a consistent pH, ensuring accurate separation and analysis of RNA samples. Additionally, it is utilized in enzyme assays and other biochemical experiments where a stable pH environment is critical for optimal activity and reliable results. Its low reactivity with metal ions also makes it suitable for use in studies involving metal-sensitive enzymes or proteins.