Creatine monohydrate (Standard) is the standard substance of Creatine monohydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Creatine monohydrate (Methylguanidoacetic acid monohydrate) is a key player in the phosphagen energy system, especially in muscle and the brain. Creatine monohydrate is the primary source of ATP during high-intensity, short-term activities.