Levothyroxine Impurities

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StructureName of ImpurityCatalogue No.
76353-71-4: Levothyroxine Ethyl EsterLevothyroxine Ethyl EsterVL1320022View CAS 76353-71-4
909279-46-5: Levothyroxin Impurity 10Levothyroxin Impurity 10VL1320027View CAS 909279-46-5
levothyroxin impurity 30 sodium saltlevothyroxin impurity 30 sodium saltVL1320028View
Levothyroxine Lactose AdductLevothyroxine Lactose AdductVL1320033View
5817-39-0: Levothyroxine EP Impurity KLevothyroxine EP Impurity KVL1320013View CAS 5817-39-0
671235-41-9: Levothyroxine N-Formyl ImpurityLevothyroxine N-Formyl ImpurityVL1320014View CAS 671235-41-9
26041-51-0: Levothyroxine N-Acetyl ImpurityLevothyroxine N-Acetyl ImpurityVL1320015View CAS 26041-51-0
6893-02-03: Levothyroxine EP Impurity ALevothyroxine EP Impurity AVL1320016View CAS 6893-02-03
2088032-52-2: Levothyroxine N-MethylamideLevothyroxine N MethylamideVL1320017View CAS 2088032-52-2
Levothyroxine T4 Amine O-MethylLevothyroxine T4 Amine O-MethylVL1320018View
Levothyroxine EP Impurity DLevothyroxine EP Impurity DVL1320019View
Levothyroxine T4-Formic Acid N-Methyl AmideLevothyroxine T4-Formic Acid N-Methyl AmideVL1320020View
1041-01-06: Levothyroxine EP Impurity ELevothyroxine EP Impurity EVL1320021View CAS 1041-01-06
93647-48-4: Levothyroxine T4-Hydroxyacetic Acid ImpurityLevothyroxine T4 Hydroxyacetic Acid ImpurityVL1320010View CAS 93647-48-4
911661-90-0: Levothyroxine EP Impurity FLevothyroxine EP Impurity FVL1320011View CAS 911661-90-0
1628720-66-0: Levothyroxine EP Impurity BLevothyroxine EP Impurity BVL1320012View CAS 1628720-66-0
2016-06-0: Levothyroxine EP Impurity ILevothyroxine EP Impurity IVL1320001View CAS 2016-06-0
176258-88-1: Levothyroxine Acetamide ImpurityLevothyroxine Acetamide ImpurityVL1320002View CAS 176258-88-1
2055-97-2: Levothyroxine EP Impurity HLevothyroxine EP Impurity HVL1320003View CAS 2055-97-2
4604-41-5: Levothyroxine EP Impurity JLevothyroxine EP Impurity JVL1320005View CAS 4604-41-5
7069-47-8: 3,5,3’,5’-Tetraiodo Thyrolactic Acid3 | 5 | 3’ | 5’-Tetraiodo Thyrolactic AcidVL1320006View CAS 7069-47-8
Levothyroxine O-Methyl ImpurityLevothyroxine O Methyl ImpurityVL1320007View
107849-54-7: Levothyroxine Beta HydroxyLevothyroxine Beta HydroxyVL1320008View CAS 107849-54-7
51-24-1: Levothyroxine EP Impurity CLevothyroxine EP Impurity CVL1320009View CAS 51-24-1
4618-45-5: 4-(4-hydroxy-3-iodophenoxy)-3,5-diiodobenzoic acid4-(4-hydroxy-3-iodophenoxy)-3 | 5-diiodobenzoic acidVE009615View CAS 4618-45-5
55-06-1: Levothyroxine EP Impurity A (Na salt)Levothyroxine EP Impurity A (Na salt)VE007842View CAS 55-06-1