1,3,2-benzodioxaphosphole, 2,2'-oxybis- 16421-86-6 2,2'-oxybis(1,3,2-benzodioxaphosphole) InChI=1/C12H8O5P2/c1-2-6-10-9(5-1)13-18(14-10)17-19-15-11-7-3-4-8-12(11)16-19/h1-8 bis-o-phenylene pyrophosphite