Methyl acetylsalicylate is a natural product isolated from Pisum sativum. Inhibition of collagen-induced human platelet rich plasma aggregation.

Astressin is an amino-terminal truncated analog of CRF that retains high affinity binding to the extracellular domain of the receptor and is believed to act as a neutral competitive antagonist of receptor activation.

9H-Carbazole, 3,6-diiodo- is a marine derived natural products found in Kyrtuthrix maculans.