CAS No.: 92134-98-0 Synonyms: Fosphenytoin disodium salt; 5,5-Diphenyl-3-[(phosphonooxy)methyl]-2,4-imidazolidinedione disodium salt Formula: C₁₆H₁₃N₂Na₂O₆P Formula Weight: 406.24 Linear Formula: C₁₆H₁₃N₂Na₂O₆P