Lignoceric Acid is a 24-carbon saturated (24:0) fatty acid and a by-product of lignin production, which is synthesized in the developing brain.

3-(2-Hydroxyphenyl)propanoic acid also known as melilotic acid or melilotate. Within the cell 3-(2-hydroxyphenyl)propanoic acid is primarily located in the cytoplasm.

1-Methylhistamine dihydrochloride is a major metabolite of histamine by histamine N-methyltransferase in the pathway of histidine metabolism.?It has been used as a biomarker of histaminergic system activity in the brains of Alzheimer's disease patients as well as those with hypersomnia and other neurological conditions.