Chromogranin A (324-337), human is a peptide fragment of chromogranin A, it can be isolated from human ileal carcinoid tumor. Chromogranin A is a soluble glycoprotein stored with hormones and neuropeptides in secretory granules of most (neuro)endocrine cells and neurons, and it is also a plasma marker of neuroendocrine tumors.

Alpha-Amyrone (Alfa-Amyrenone) is a natural poduct found in aerial parts of Inula candida (L.) Cass. subsp. Alpha-Amyrone is an antineoplastic agent.

α-Conotoxin RgIA (α-RgIA) is a specific α9α10 nAChR antagonist. α-Conotoxin RgIA can be obtained from Conus regius venom. α-Conotoxin RgIA can be used in the study of neurological diseases.