Lanreotide, a cyclic somatostatin agonist shows a high binding affinity for the somatostatin receptor (SSTR) subtype 2 and has a 10-fold less affinity for receptor subtype 5. It is also a potent inhibitor of growth hormone secretion from pituitary cells. Furthermore, the octapeptide exhibits a direct antiproliferative effect in vivo and in vitro on the growth of cells or solid tumors from a human small cell lung carcinoma. CAS Number (lanreotide acetate): 127984-74-1. Offered under Bolar Exemption: All APIs that are sold for development of drug products still patent protected are offered under Bolar Exemption only. The following disclaimer applies: These products are offered and sold in small quantities only and solely for uses reasonably related to privileged trials and studies for obtaining marketing authorization required by law (Bolar Exemption). Bachem cannot be made liable for any infringement of intellectual property rights. It is the sole and only responsibility of the purchaser or user of these products to comply with the relevant national rules and regulations.