Levothyroxine Impurities

  • Levothyroxine Impurities

  • Impurity: O-methyl-tetraiodo-thyroethylamine
  • CAS No: N/A
  • Chemical Name: 2-[4(3,5-Diiodo-4-methoxyphenoxy)-3,5-diiodophenyl]-ethyl amine or T4 -amine -O-methyl

  • Levothyroxine Impurities

  • Impurity: Levothyroxine EP Impurity A (Liothyronine)
  • CAS No: N/A
  • Chemical Name: 2-Amino-3-[4-(4-hydroxy-3-iodo-phenoxy)3,5-diiodophenoxy]-propionic acid

  • Levothyroxine Impurities

  • Impurity: Levothyroxine N-methylamide
  • CAS No: N/A
  • Chemical Name: 2-Amino-3-[4-(4-hydroxy-3,5-diiodo-phenoxy)3,5-diiodo-phenyl]-N-methyl-propionamide

  • Levothyroxine Impurities

  • Impurity: Levothyroxine EP Impurity C
  • CAS No: N/A
  • Chemical Name: [4-(4-Hydroxy-3-iodo-phenoxy)-3,5-diiodo-phenyl]-acetic acid or T3-Acetic acid

  • Levothyroxine Impurities

  • Impurity: Levothyroxine EP Impurity D
  • CAS No: N/A
  • Chemical Name: [4-(4-Hydroxy-3,5-di-iodo-phenoxy)-3,5-diiodo-phenyl]-acetic acid or T4-Acetic acid

  • Levothyroxine Impurities

  • Impurity: 3,5-Diiodo-L-tyrosine
  • CAS No: N/A
  • Chemical Name: 2-Amino-3-(4-hydroxy-3,5-diiodophenyl)-propanoic acid

  • Levothyroxine Impurities

  • Impurity: O-Methyl Levothyroxine
  • CAS No: N/A
  • Chemical Name: 3-Amino-3-[4-(2,4-diiodo-3-methoxy-phenoxy)-3,5-diiodo-phenyl]-propionic acid

  • Levothyroxine Impurities

  • Impurity: O-Methyl levothyroxine methyl ester
  • CAS No: N/A
  • Chemical Name: 2-Amino-3[4-(2,4-diiodo-3-methoxyphenoxy)-3,5-diiodophenyl]-propionic acid methyl ester

  • Levothyroxine Impurities

  • Impurity: Levothyroxine EP Impurity A
  • CAS No: 55-06-1
  • Chemical Name: (S)-2-amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]propanoicacid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity B
  • CAS No: 1628720-66-0
  • Chemical Name: (2S)-2-Amino-3-[4-(3-chloro-4-hydroxy-5-iodophenoxy)-3,5-diiodophenyl] propanoic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity C(T3-Acetic acid)
  • CAS No: 51-24-1
  • Chemical Name: 2-(4-(4-hydroxy-3-iodophenoxy)-3, 5-diiodophenyl) acetic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity D (Levothyroxine T4-acetic acid Imp)
  • CAS No: 67-30-1
  • Chemical Name: (2S)-2-Amino-3-[4-(4-hydroxy-3-iodophenoxy)-3-iodophenyl] propanoic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity F (T6 Imp)
  • CAS No: 911661-90-0
  • Chemical Name: 2-amino-3-(4-(4-(4-hydroxy-3, 5-diiodophenoxy)-3, 5-diiodophenoxy)-3, 5-diiodophenyl) propanoic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity H (T4-Benzoic acid)
  • CAS No: 2055-97-2
  • Chemical Name: 4-(4-hydroxy-3, 5-diiodophenoxy)-3,5-diiodobenzoic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity I
  • CAS No: 2016-06-0
  • Chemical Name: 4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzaldehyde

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity J
  • CAS No: 4604-41-5
  • Chemical Name: (S)-2-amino-3-(4-(4-hydroxy-3-iodophenoxy)-3-iodophenyl)propanoic acid

  • Levothyroxine EP Impurities

  • Impurity: Levothyroxine EP Impurity K
  • CAS No: 5817-39-0
  • Chemical Name: 2-amino-3-(4-(4-hydroxy-3, 5-diiodophenoxy)-3-iodophenyl) propanoic acid

  • Levothyroxine Impurities

  • Impurity: Levothyroxine N-Methylamide (USP)
  • CAS No: 2088032-52-2
  • Chemical Name: 2-amino-3-(4-(4-hydroxy-3, 5-diiodophenoxy)-3, 5-diiodophenyl)-N-methylpropanamide

  • Levothyroxine Impurities

  • Impurity: Levothyroxine N-acetyl Impurity (USP)
  • CAS No: 26041-51-0
  • Chemical Name: 2-acetamido-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid

  • Levothyroxine Impurities

  • Impurity: Levothyroxine N-formyl Impurity (USP)
  • CAS No: 671235-41-9
  • Chemical Name: 2-formamido-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid

  • Levothyroxine Impurities

  • Impurity: Levothyroxine T4 Amine O-Methyl Impurity(USP)
  • CAS No: 176258-88-1
  • Chemical Name: 2-(4-(3, 5-diiodo-4-methoxyphenoxy)-3, 5-diiodophenyl) ethanamine.

  • Levothyroxine Impurities

  • Impurity: Levothyroxine Thyrolactic Acid impurity
  • CAS No: 7069-47-8
  • Chemical Name: 2-hydroxy-3-(4-(4-hydroxy-3, 5-diiodophenoxy)-3, 5-diiodophenyl) propanoic acid