Synonyms: Levothyroxine sodium hydrate; 3,3',5,5'-Tetraiodo-L-thyronine monosodium salt hydrate; L-Thyroxin monosodium salt hydrate; Sodium O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine hydrate CAS Number: 25416-65-3 Formula: C15H10I4NNaO4 · xH2O Formula Weight: 798.85 (anhydrous…