Orchidble (Compound 9) is a kind of phenanthrene compound which can be isolated from the roots of Bletilla ochracea.

4-Hydroxybenzoic acid is a monohydroxybenzoic acid, a phenolic derivative of benzoic acid. It is a white crystalline solid that is slightly soluble in water and chloroform but more soluble in polar organic solvents such as alcohols and acetone.

Antho-RFamide is a neuropeptide isolated from the sea anemone (Anthopleura elegantissima). Antho-RFamide contains a specific carboxyl-terminal sequence, Arg-Phe-NH2, that plays an important role in neural signaling. Antho-RFamide can be used to study the function of neuropeptides in the nervous system of the simplest animals.