6534-79-8

5,5,10,10-tetraethoxy-2,7-diphenyl-5lambda~5~,10lambda~5~-[1,3,2,4]diazadiphospheto[1,2-a:3,4-a']bis[1,4,2]diazaphosphole-1,3,6,8(2H,5H,7H,10H)-tetrone