Synonyms: hexanoicacid,2-ethyl-,compd.with2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]a;Hexanoicacid,2-ethyl-,compd.with2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine(1:1);zepine(1:1);1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH 2-ETHYLHEXANOIC ACID (1:1);Hexanoic acid, 2-ethyl-, compd. with 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine;1,8-Diazabicyclo[5.4.0]undec-7-ene 2-ethylhexanoate