179809-56-4 2',(2')'-Bis(salicyloyl)dodecanedi(ohydrazide) 63245-38-5 Dodecanedioic acid, bis(2-(2-hydroxybenzoyl)hydrazide) EINECS 264-042-3 N,N'-Dodecanedioyl-N'',N'''-bis(2-hydroxybenzoyl)hydrazide