Dendroaspis Natriuretic Peptide is a vasodilator peptide that can be isolated from animal venom.

2-Heptanol is one of chemical constituents identified in the essential oil of rhizome of Curcuma angustifolia and Curcuma zedoaria. Rhizome essential oil exhibited good antimicrobial and antioxidant activity.

1-Methylhydantoin is a small molecular weight polar substance the product of degradation of creatinine by bacteria. In mammals the metabolism of 1-methylhydantoin occurs via 5-hydroxy-1-methylhydantoin. In a reported human case 1-Methylhydantoin was found as an unexpected metabolite of the intelligence-affecting substance dupracetam.