(3S,6S,9S,12R,15S,18S,21R,24S,30S,33S,34R)-30-ethyl-34-((R,E)-hepta-4,6-dien-2-yl)-6,9,18,24-tetraisobutyl-3,21-diisopropyl-4,7,10,12,15,19,25,28-octamethyl-33-(methylamino)-1-oxa-4,7,10,13,16,19,22,25,28,31-decaazacyclotetratriacontan-2,5,8,11,14,17,20,23,26,29,32-undecaone,30-ethyl-6,9,18,24-tetraisobutyl-3,21-diisopropyl-4,7,10,12,15,19,25,28-octamethyl-33-(methylamino)-34-(1-methylhexa-3,5-dienyl)-1-oxa-4,7,10,13,16,19,22,25,28,31-decazacyclotetratriacontane-2,5,8,11,14,17,20,23,26,29,32-undecone,voclosporin Impurity