Creatine phosphate disodium salt tetrahydrate is a substrate for the assay of creatine kinase.

11-Oxomogroside II A1 (compound 7) is an oxidized cucurbitin. It can be isolated from the ethanol extract of Rohanberry fruit.

Luciferase, firefly is the light-emitting enzyme responsible for the bioluminescence of fireflies and click beetles. The enzyme catalyses the oxidation of firefly luciferin, requiring oxygen and ATP.