Guanosine monophosphate also known as guanylic acid or 5'-GMP belongs to the class of organic compounds known as purine ribonucleoside monophosphates. In particular L-Glutamic acid and guanosine monophosphate can be biosynthesized from xanthylic acid and L-glutamine; which is catalyzed by the enzyme GMP synthase.

Kisspeptin 13 inhibits glucose-induced insulin secretion with an IC50 of 1.2 nM. Kisspeptin 13 activates the hypothalamic-pituitary-adrenal (HPA) axis, causes hyperthermia, motor behavior and anxiety in rats. Kisspeptin 13 interacts with α2-adrenergic and 5-HT2 serotonin receptors, exhibits antidepressant efficacy. Kisspeptin 13 is an activator for GPR54 and GnRH receptor, which enhances memory and can be used in Alzheimer's disease research.

Flavoring agent and non-nutritive sweetener.