67920-91-6 94-91-7 Carlisle metal deactivator Copper inhibitor 50 Cuvan 80 DMD Disalicylalpropylenediimine Du Pont metal deactivator EINECS 202-374-2 Keromet MD N,N'-Bis(salicylidene)-1,2-diaminopropane N,N'-Disalicyclidene-1,2-propanediamine N,N'-Disalicylidene-1,2-diaminopropane N,N'-Disalicylidene-1,2-propanediamine N,N'-Disalicylidene-1,2-propylenediamine N,N'-Propylenebis(salicylideneimine) NSC 67004 Phenol, 2,2'-((1-methyl-1,2-ethanediyl)bis(nitrilomethylidyne))bis- Tenamene 60 UOP copper deactivator alpha,alpha'-Dipropylenedinitrilodi-o-cresol alpha,alpha'-Propylenedinitrilodi-o-cresol o-CRESOL, alpha,alpha'-(PROPYLENEDINITRILO)DI-