Levothyroxine N-Methylamide (USP) is chemically (S)-2-Amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)-N-methylpropanamide. Levothyroxine N-Methylamide (USP) is supplied with detailed characterization data compliant with regulatory guideline. Levothyroxine N-Methylamide (USP) can be used f