Tags: Chemical Compound, Chemical Substance.
3-Methoxy-4-hydroxyphenylglycol (MHPG MOPEG) is a metabolite of norepinephrine degradation. In the brain it is the principal norepinephrine metabolite. It is released into the blood and cerebrospinal fluid and a blood sample of it may therefore be an indication of recent sympathetic nervous system activity.Low levels of it in the blood and CSF are connected to Anorexia nervosa.