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Levothyroxine Impurities & Reference Standards

23 compounds in the Levothyroxine family. Browse chemical names, CAS numbers and molecular specifications, and enquire about your required quantity and purity.

Levothyroxine

L-Thyroxine

CAS No.
51-48-9
Formula
C15H11I4NO4
Molecular weight
776.9 g/mol
Levothyroxine

Levothyroxine D-Isomer

CAS No.
51-49-0
Formula
C15H11I4NO4
Molecular weight
776.87 g/mol
Levothyroxine

Levothyroxine EP Impurity C (or) Liothyronine (EP) Impurity-C

CAS No.
51-24-1
Formula
C14H9I3O4
Molecular weight
621.94 g/mol
Levothyroxine

Levothyroxine EP Impurity E

CAS No.
1041-01-6
Formula
C15H13I2NO4
Molecular weight
525.08 g/mol
Levothyroxine

Levothyroxine EP Impurity H

CAS No.
2055-97-2
Formula
C13H6I4O4
Molecular weight
733.8 g/mol
Levothyroxine

Levothyroxine EP Impurity I

CAS No.
2016-06-0
Formula
C13H6I4O3
Molecular weight
717.81 g/mol
Levothyroxine

Levothyroxine Ethyl Ester

CAS No.
76353-71-4
Formula
C17H15I4NO4
Molecular weight
804.93 g/mol
Levothyroxine

Levothyroxine Glucose adduct

CAS No.
On request
Formula
C21H21I4NO9
Molecular weight
939.01 g/mol
Levothyroxine

Levothyroxine Hydroxyphenoxy Aldehyde Impurity

CAS No.
2828-49-1
Formula
C13H8I2O3
Molecular weight
466.01 g/mol
Levothyroxine

Levothyroxine Impurity 1

CAS No.
2055-94-9
Formula
C13H8I4O3
Molecular weight
719.82 g/mol
Levothyroxine

Levothyroxine Impurity 1

CAS No.
176258-89-2
Formula
C14H10I4O2
Molecular weight
717.85 g/mol
Levothyroxine

Levothyroxine Impurity 5

CAS No.
51-26-3
Formula
C15H11I3O4
Molecular weight
636 g/mol
Levothyroxine

Levothyroxine impurity-F

CAS No.
911661-90-0
Formula
C21H13I6NO5
Molecular weight
1120.76 g/mol
Levothyroxine

Levothyroxine Methoxyphenoxy Aldehyde Impurity

CAS No.
69240-57-9
Formula
C14H10I2O3
Molecular weight
480.04 g/mol
Levothyroxine

Levothyroxine Methyl Ester

CAS No.
32180-11-3
Formula
C16H13I4NO4
Molecular weight
790.9 g/mol
Levothyroxine

Levothyroxine Monochloro Impurity

CAS No.
909279-46-5
Formula
C15H11ClI3NO4
Molecular weight
685.42 g/mol
Levothyroxine

Levothyroxine Sodium

CAS No.
25416-65-3
Formula
C15H20I4NNaO9
Molecular weight
888.93 g/mol
Levothyroxine

Levothyroxine USB D

CAS No.
176258-88-1
Formula
C14H9I4NO3
Molecular weight
746.85 g/mol
Levothyroxine

Levothyroxine USB E

CAS No.
26041-51-0
Formula
C17H13I4NO5
Molecular weight
818.91 g/mol
Levothyroxine

Levothyroxine USB Sodium

CAS No.
909256-88-8
Formula
C15H10I4NNaO4
Molecular weight
798.86 g/mol
Levothyroxine

Levothyroxine USP Related Compound C

CAS No.
671235-41-9
Formula
C16H11I4NO5
Molecular weight
804.88 g/mol
Levothyroxine

Liothyronine (EP) Impurity-B (or) Levothyroxine (EP) Impurity B

CAS No.
300-39-0
Formula
C9H9I2NO3
Molecular weight
432.98 g/mol
Levothyroxine

Liothyronine (EP) Impurity-D (or) Levothyroxine (EP) Impurity-D

CAS No.
67-30-1
Formula
C14H8I4O4
Molecular weight
747.83 g/mol
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