2-(Methylamino)pentanedioic acid (N-Methyl-DL-glutamic acid) is an endogenous metabolite that inhibits Glutaminase, adds freshness to edible products, and can be used in tuberculosis research.

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.

11-cis-Vaccenyl acetate activates olfactory neurons located in the T1 sensilla on the antenna and mediates aggregation behavior in both male and female flies.