Creatine (Standard) is a naturally occurring nitrogenous organic acid that is stored in the body primarily as Creatine Phosphate, an important source of rapid intracellular energy supply.Creatine has neuroprotective and cardiovascular protective effects, and exerts anti-inflammatory activity through inhibition of TNF-alpha expression. As a standard, Creatine can be used for quantitative analysis to study energy metabolic pathways and related diseases.