1,4-Bis(cyclohexylamino)-2-butyne 2-Butyne-1,4-diamine, N,N'-dicyclohexyl- 73825-66-8 Cyclohexylamine, N,N'-(2-butynylene)bis- N,N'-(2-Butynylene)dicyclohexylamine NSC190402 WLN: L6TJ AM2UU2M- AL6TJ