Linsitinib, Free base. A potent, dual insulin-like growth factor-1 receptor (IGF-1R)/insulin receptor (IR) kinase inhibitor, Synonyms:-(1S,3S)-3-(8-amino-1-(2-phenylquinolin-7-yl)imidazo[1,5-a]pyrazin-3-yl)-1-methylcyclobutanol, CAS Number:-867160-71-2, Purity:-G99% by HPLC, 25mg.