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Levothyroxine N-Formyl Impurity
QCC Cat No.: QL202414
Chemical Name: Levothyroxine N-Formyl Impurity
Synonyms: (S)-2-formamido-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)propanoic acid
CAS No.: 671235-41-9
Molecular Formula: C16H11I4NO5
Molecular Weight: 804.88
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Standard Reference Material For "Levothyroxine N-Formyl Impurity"
Warning:The form of the product salt may be different from the official website,please consult your local agent for details.
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QCC CAT# COMPOUND ORDER
  • QL202437
    Thyroxamine
    CAS# 3571-49-1;788824-71-5(HCl salt)
    M.F.: C14H11I4NO2
    M.W.: 732.86
  • QL202436
    Levothyroxine Impurity 36
    CAS# 66701-15-3
    M.F.: C15H12I3NO4
    M.W.: 650.98
  • QL202435
    Levothyroxine Impurity 35
    CAS# 30804-52-5
    M.F.: C19H17I4NO5
    M.W.: 846.96
  • QL202434
    Levothyroxine Impurity 34
    CAS# NA
    M.F.: C14H8I4O3
    M.W.: 731.83
  • QL202433
    Levothyroxine Impurity 33
    CAS# 16711-71-0
    M.F.: C9H9I2NO3
    M.W.: 432.98
  • QL202432
    Levothyroxine Impurity 32
    CAS# 25799-58-0
    M.F.: C9H10INO3
    M.W.: 307.09
  • QL202431
    Levothyroxine Impurity 31
    CAS# NA
    M.F.: C21H21I4NO9
    M.W.: 939.01
  • QL202430
    Levothyroxine Impurity 30
    CAS# NA
    M.F.: C16H13I5N2O3
    M.W.: 915.81
  • QL202429
    Levothyroxine Impurity 29
    CAS# NA
    M.F.: C18H17I4NO4
    M.W.: 818.95
  • QL202428
    Levothyroxine Impurity 28
    CAS# 4367-89-9
    M.F.: C16H13I4NO4
    M.W.: 790.90
  • QL202427
    Levothyroxine Impurity 27
    CAS# NA
    M.F.: C15H11I3O4
    M.W.: 635.96
  • QL202426
    Levothyroxine Impurity 26
    CAS# NA
    M.F.: C14H9I3O4
    M.W.: 621.93
  • QL202425
    Levothyroxine Impurity 25
    CAS# 2088032-52-2
    M.F.: C16H14I4N2O3
    M.W.: 789.91
  • QL202424
    Levothyroxine Impurity 24
    CAS# 2088032-78-2
    M.F.: C14H9I4NO3
    M.W.: 746.84
  • QL202423
    Levothyroxine Impurity 23
    CAS# NA
    M.F.: C15H11I4NO5
    M.W.: 792.87
  • QL202422
    Levothyroxine Impurity 22
    CAS# 2230724-39-5
    M.F.: C15H13I4NO2
    M.W.: 746.89
  • QL202421
    Levothyroxine Impurity 21
    CAS# 909279-46-5
    M.F.: C15H11ClI3NO4
    M.W.: 685.42
  • QL202420
    Levothyroxine Impurity 20
    CAS# 7069-47-8
    M.F.: C15H10I4O5
    M.W.: 777.85
  • QL202419
    Levothyroxine Impurity 19
    CAS# 51-26-3
    M.F.: C15H11I3O4
    M.W.: 635.96
  • QL202418
    Levothyroxine Impurity 18;3-Iodo-L-Tyrosine
    CAS# 70-78-0
    M.F.: C9H10INO3
    M.W.: 307.09
  • QL202417
    Levothyroxine Impurity 17
    CAS# NA
    M.F.: C21H15I4NO9
    M.W.: 932.96
  • QL202416
    Levothyroxine Lactose Adduct
    CAS# NA
    M.F.: C27H31I4NO14
    M.W.: 1101.16
  • QL202415
    Levothyroxine Acetamide Impurity
    CAS# 176258-88-1
    M.F.: C14H9I4NO3
    M.W.: 746.84
  • QL202413
    Levothyroxine T4-Hydroxyacetic Acid
    CAS# 93647-48-4
    M.F.: C14H8I4O5
    M.W.: 763.83
  • QL202412
    Levothyroxine EP Impurity K
    CAS# 5817-39-0
    M.F.: C15H12I3NO4
    M.W.: 650.97
  • QL202411
    Levothyroxine EP Impurity J
    CAS# 4604-41-5
    M.F.: C15H13I2NO4
    M.W.: 525.08
  • QL202410
    Levothyroxine EP Impurity I
    CAS# 2016-06-0
    M.F.: C13H6I4O3
    M.W.: 717.80
  • QL202409
    Levothyroxine Methyl Ester
    CAS# 32180-11-3
    M.F.: C16H13I4NO4
    M.W.: 790.9
  • QL202408
    Levothyroxine Ethyl Ester
    CAS# 76353-71-4
    M.F.: C17H15I4NO4
    M.W.: 804.92
  • QL202407
    Levothyroxine EP Impurity H
    CAS# 2055-97-2
    M.F.: C13H6I4O4
    M.W.: 733.80
  • QL202406
    Levothyroxine EP Impurity F
    CAS# 911661-90-0
    M.F.: C21H13I6NO5
    M.W.: 1120.76
  • QL202405
    Levothyroxine EP Impurity E;
    Liothyronine EP Impurity E
    CAS# 1041-01-6
    M.F.: C15H13I2NO4
    M.W.: 525.08
  • QL202404
    Levothyroxine EP Impurity D;
    Liothyronine EP Impurity D
    CAS# 67-30-1
    M.F.: C14H8I4O4
    M.W.: 747.83
  • QL202403
    Levothyroxine EP Impurity C;
    Liothyronine EP Impurity C
    CAS# 51-24-1
    M.F.: C14H9I3O4
    M.W.: 621.93
  • QL202402
    Levothyroxine EP Impurity B
    CAS# 1628720-66-0
    M.F.: C15H11ClI3NO4
    M.W.: 685.42
  • QL202401
    Levothyroxine EP Impurity A
    CAS# 6893-02-3
    M.F.: C15H12I3NO4
    M.W.: 650.97
  • QL202400NA
    Levothyroxine Sodium;
    Liothyronine sodium EP Impurity A
    CAS# 25416-65-3;51-48-9(free base)
    M.F.: C15H10I4NNaO4.xH2O
    M.W.: 798.86 x(18.02)
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