phosphono dihydrogen phosphate 33943-49-6 2466-09-3 Pyrophosphorsaeure [(HO)2P(O)OP(O)(OH)2] acide diphosphorique NCGC00013687 83210_FLUKA NCIStruc1_000506 P00025 433314_ALDRICH DPO NSC-56751 NCIStruc2_000426 mu-oxido-bis(dihydroxidooxidophosphorus) 60352_RIEDEL POP Phosphonooxyphosphonic acid NCI60_004388 C00013 PP pyrophosphate NChemBio.2007.9-comp24 Pyrophosphoric acid PPV NSC289196 7722-88-5 (TETRASODIUM SALT) AIDS-000493 AIDS000493 NSC56751 (TETRASODIUM SALT) Oxy-1,1-diphosphonic acid Diphosphoric acid EINECS 219-574-0 NCI56751 1,5-dihydrido-2,4-dihydroxido-2,4-dioxido-1,3,5-trioxy-2,4-diphosphy-[5]catena CHEBI:29888 Diphosphorsaeure H4P2O7