👉 It's a substance, 1957, phosphorus pentoxide, with diphenyl, 3-methoxy phenyl, and phosgene at its center. Its molecular formula is C18H28N3O, which can also be written as [C18] [H28] [N3] [O].
1957. Diphenyl (2-methoxyphenyl)phosphonate; 676565-75-6