ODM2 Variable Name Controlled Vocabulary ODM2 Working Group A vocabulary for describing the name of Variables. 4,4-Methylenebis(N,N-dimethylaniline) 4,4'-Methylenebis(N,N-dimethylaniline) (C17H22N2) Originally from the CUAHSI HIS VariableNameCV. See: http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=VariableNameCV.