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    • Levothyroxine Impurity 1

    Levothyroxine Impurity 1

    • CF CAT No :
      CF-L059026
    • CAS No :
      2055-94-9
    • Mol.F. :
      C13H8I4O3
    • Mol.Wt. :
      719.8
    • Inv. Status :
      Custom Synthesis
    • Product Overview

    Chemical Name: 4-(4-(Hydroxymethyl)-2,6-diiodophenoxy)-2,6-diiodophenol

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    Levothyroxine
    Image

    CF CAT No: CF-L059001

    CAS No: 51-48-9

    Mol.F. : C15H11I4NO4

    Mol.Wt. : 776.9

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity A
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    CF CAT No: CF-L059002

    CAS No: 55-06-1

    Mol.F. : C15H11I3NO4 : Na

    Mol.Wt. : 650.0 : 23.0

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity B
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    CF CAT No: CF-L059003

    CAS No: 1628720-66-0

    Mol.F. : C15H11ClI3NO4

    Mol.Wt. : 685.4

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity C
    Image

    CF CAT No: CF-L059004

    CAS No: 51-24-1

    Mol.F. : C14H9I3O4

    Mol.Wt. : 621.9

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity D
    Image

    CF CAT No: CF-L059005

    CAS No: 67-30-1

    Mol.F. : C14H8I4O4

    Mol.Wt. : 747.8

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity E
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    CF CAT No: CF-L059006

    CAS No: 1041-01-6

    Mol.F. : C15H13I2NO4

    Mol.Wt. : 525.1

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity F
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    CF CAT No: CF-L059007

    CAS No: 911661-90-0

    Mol.F. : C21H13I6NO5

    Mol.Wt. : 1120.8

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity H
    Image

    CF CAT No: CF-L059008

    CAS No: 2055-97-2

    Mol.F. : C13H6I4O4

    Mol.Wt. : 733.8

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity I
    Image

    CF CAT No: CF-L059009

    CAS No: 2016-06-0

    Mol.F. : C13H6I4O3

    Mol.Wt. : 717.8

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity J
    Image

    CF CAT No: CF-L059010

    CAS No: 4604-41-5

    Mol.F. : C15H13I2NO4

    Mol.Wt. : 525.1

    Inv. Status : Custom Synthesis

    Levothyroxine EP Impurity K
    Image

    CF CAT No: CF-L059011

    CAS No: 5817-39-0

    Mol.F. : C15H12I3NO4

    Mol.Wt. : 650.9

    Inv. Status : Custom Synthesis

    Levothyroxine N-Acetyl-T4 Impurity (USP)
    Image

    CF CAT No: CF-L059012

    CAS No: 26041-51-0

    Mol.F. : C17H13I4NO5

    Mol.Wt. : 818.9

    Inv. Status : Custom Synthesis

    Levothyroxine N-Formyl-T4 Impurity (USP)
    Image

    CF CAT No: CF-L059013

    CAS No: 671235-41-9

    Mol.F. : C16H11I4NO5

    Mol.Wt. : 804.9

    Inv. Status : Custom Synthesis

    Levothyroxine T4-Acetamide Impurity (USP)
    Image

    CF CAT No: CF-L059014

    CAS No: 176258-88-1

    Mol.F. : C14H9I4NO3

    Mol.Wt. : 746.8

    Inv. Status : Custom Synthesis

    Levothyroxine T4-Hydroxyacetic acid (USP)
    Image

    CF CAT No: CF-L059015

    CAS No: 93647-48-4

    Mol.F. : C14H8I4O5

    Mol.Wt. : 763.8

    Inv. Status : Custom Synthesis

    Levothyroxine N-Methylamide (USP)
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    CF CAT No: CF-L059016

    CAS No: 2088032-52-2

    Mol.F. : C16H14I4N2O3

    Mol.Wt. : 789.9

    Inv. Status : Custom Synthesis

    Monochlorotriiodothyronine (USP)
    Image

    CF CAT No: CF-L059017

    CAS No: 909279-46-5

    Mol.F. : C15H11ClI3NO4

    Mol.Wt. : 685.4

    Inv. Status : Custom Synthesis

    Levothyroxine Sodium (USP)
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    CF CAT No: CF-L059018

    CAS No: 55-03-8

    Mol.F. : C15H10I4NO4 : Na

    Mol.Wt. : 775.9 : 23.0

    Inv. Status : Custom Synthesis

    N,O-Diacetyl Diiodotyrosine (USP)
    Image

    CF CAT No: CF-L059019

    CAS No: 153324-21-1

    Mol.F. : C13H13I2NO5

    Mol.Wt. : 517.1

    Inv. Status : Custom Synthesis

    beta-Hydroxy Thyroxine (USP)
    Image

    CF CAT No: CF-L059020

    CAS No: 107849-54-7

    Mol.F. : C15H11I4NO5

    Mol.Wt. : 792.9

    Inv. Status : Custom Synthesis

    3,5-Dibromo-L-tyrosine
    Image

    CF CAT No: CF-L059021

    CAS No: 300-38-9

    Mol.F. : C9H9Br2NO3

    Mol.Wt. : 339

    Inv. Status : Custom Synthesis

    3,5-Dichloro-L-Tyrosine
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    CF CAT No: CF-L059022

    CAS No: 15106-62-4

    Mol.F. : C9H9Cl2NO3

    Mol.Wt. : 250.1

    Inv. Status : Custom Synthesis

    3,5-Diiodo Thyroacetic Acid
    Image

    CF CAT No: CF-L059023

    CAS No: 1155-40-4

    Mol.F. : C14H10I2O4

    Mol.Wt. : 496

    Inv. Status : Custom Synthesis

    Levothyroxine Glucose Adduct
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    CF CAT No: CF-L059024

    CAS No: NA

    Mol.F. : C21H21I4NO9

    Mol.Wt. : 939

    Inv. Status : Custom Synthesis

    Levothyroxine Lactose Adduct
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    CF CAT No: CF-L059025

    CAS No: NA

    Mol.F. : C27H32I3NO14

    Mol.Wt. : 975.3

    Inv. Status : Custom Synthesis

    Levothyroxine Impurity 1
    Image

    CF CAT No: CF-L059026

    CAS No: 2055-94-9

    Mol.F. : C13H8I4O3

    Mol.Wt. : 719.8

    Inv. Status : Custom Synthesis

    Levothyroxine Impurity 3
    Image

    CF CAT No: CF-L059027

    CAS No: 854646-83-6

    Mol.F. : C8H7I2NO3

    Mol.Wt. : 419

    Inv. Status : Custom Synthesis

    Levothyroxine Impurity 5
    Image

    CF CAT No: CF-L059028

    CAS No: 51-26-3

    Mol.F. : C15H11I3O4

    Mol.Wt. : 636

    Inv. Status : Custom Synthesis

    Levothyroxine Impurity 12
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    CF CAT No: CF-L059029

    CAS No: 889871-36-7

    Mol.F. : C9H9ClINO3

    Mol.Wt. : 341.5

    Inv. Status : Custom Synthesis

    Levothyroxine D-Isomer
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    CF CAT No: CF-L059030

    CAS No: 51-49-0

    Mol.F. : C15H11I4NO4

    Mol.Wt. : 776.9

    Inv. Status : Custom Synthesis

    Levothyroxine Ethyl Ester
    Image

    CF CAT No: CF-L059031

    CAS No: 76353-71-4

    Mol.F. : C17H15I4NO4

    Mol.Wt. : 804.9

    Inv. Status : Custom Synthesis

    Levothyroxine Methoxyphenoxy Aldehyde Impurity
    Image

    CF CAT No: CF-L059032

    CAS No: 69240-57-9

    Mol.F. : C14H10I2O3

    Mol.Wt. : 480

    Inv. Status : Custom Synthesis

    Levothyroxine O-Methyl Amine Impurity
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    CF CAT No: CF-L059033

    CAS No: 2230724-39-5

    Mol.F. : C15H13I4NO2

    Mol.Wt. : 746.9

    Inv. Status : Custom Synthesis

    Levothyroxine Sodium Pentahydrate
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    CF CAT No: CF-L059034

    CAS No: 25416-65-3

    Mol.F. : C15H10I4NO4 : Na : 5(H2O)

    Mol.Wt. : 798.9 : 23.0 : 5(18.0)

    Inv. Status : Custom Synthesis

    Liothyronine Maillard Lactose Impurity
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    CF CAT No: CF-L059035

    CAS No: NA

    Mol.F. : C27H32I3NO14

    Mol.Wt. : 975.3

    Inv. Status : Custom Synthesis

    N-Acetyl L-Thyroxine Ethyl Ester
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    CF CAT No: CF-L059036

    CAS No: 30804-52-5

    Mol.F. : C19H17I4NO5

    Mol.Wt. : 847

    Inv. Status : Custom Synthesis

    T4-Formic acid N-methylamide
    Image

    CF CAT No: CF-L059037

    CAS No: 2088032-78-2

    Mol.F. : C14H9I4NO3

    Mol.Wt. : 746.8

    Inv. Status : Custom Synthesis

    Thyroxamine Hydrochloride
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    CF CAT No: CF-L059038

    CAS No: 788824-71-5

    Mol.F. : C14H11I4NO2 : HCl

    Mol.Wt. : 732.9 : 36.5

    Inv. Status : Custom Synthesis

    3,5,3',5'-Tetraiodo Thyrolactic Acid
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    CF CAT No: CF-L059039

    CAS No: 7069-47-8

    Mol.F. : C15H10I4O5

    Mol.Wt. : 777.9

    Inv. Status : Custom Synthesis

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