4130-26-1 Ethanone,1,1'-(2,2-dihydro-2,2,2-trimethoxy-4,5-dimethyl-1,3,2-dioxaphospholane-4,5-diyl)bis-, cis- 185250-21-9 1,4-Butanediamine,N,N'-bis(4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-yl)-N,N'-bis[3-[(4,4,5,5-tetramethyl-1,3,2-dioxaphospholan-2-yl)amino]propyl]-