Levitide is a neurohormone-like peptide, can be isolated from skin secretions of the South African frog Xenopus laevis. Levitide comes from preprolevitide, is 88 residues long and contains contains the levitide peptide at the C terminus (Glu-Gly-Met-Ile-Gly-Thr-Leu-Thr-Ser-Lys-Arg-Ile-Lys-Gln-NH2) and the putative signal sequence at the N terminus.

Butyl hexadecanoate is a substance found in Vietnamese, Laotian, and Cambodian agarwood cigarettes.

AZD4747 is a selective and potent inhibitor of the mutant GTPase KRASG12C that crosses the blood-brain barrier and has potential antitumor activity for the study of pancreatic and colorectal adenocarcinoma.