1,4-Dicyanobutane 111-69-3 Adipic acid dinitrile Adipic acid nitrile Adipodinitrile Adiponitrile Adipyldinitrile Hexanedinitrile Hexanedioic acid, dinitrile NSC7617 Nitrile adipico Tetramethylene cyanide Tetramethylene dicyanide WLN: NC4CN