(11bR)-3-((2-(3H-dinaphtho[2,1-c:1′,2′-e]azepin-4(5H)-yl)-1,2-diphenylethyl)amino)-4-((3,5-bis(trifluoromethyl)benzyl)amino)cyclobut-3-ene-1,2-dione is a chiral squaramides organocatalyst that has been intensively investigated within the area of molecular recognition because of their strong hydrogen-bonding activity.